Forty Percent Leadbelly

After a mishap with a 3-D printer, Bender writes a folk that comes true as he writes it.

Act I: "Don't come back 'til you've lived a life worth singin' about!"
The Planet Express Discount Prisoner Transfer crew are transferring Dr. Brutaloff, a super villan with Freddy Kruger-style finger-knives, to Elevenworth Variable Security Prison. A Hans Solo-style block of frozen carbonite encases Brutaloff. Conveying this cargo to its final destination, Bender spies Silicon Red, "the universe's greatest folk singer" at the prisoner discharge office, retrieving his belongings and preparing to depart. Bender suddenly remembers his "lifelong dream of being a folk singer" and abandons Fry to chase down Silicon Red. As soon as Bender leaves, Brutaloff escapes from the carbonite, beats Fry up, and freezes Fry back into the carbonite up to his neck.

Bender catches up to Silicon Red and takes a picture of Red's guitar, with the intention of using a 3-D printer to create a perfect duplicate. With this duplicate, Bender believes he will be a "famous folk singer". Dr. Beeler finds the image of the duplicated guitar in Bender's file system. He then turns a crank in Bender's compartment of mystery that causes Bender's components to wirelessly transmit the image to the printer. Bender can next be found walking around Planet Express wearing a flannel shirt and playing his duplicated guitar.

Fry, mostly encased in carbonite after being attacked by Dr. Brutaloff, begins at this point to make periodic sarcastic comments to complain of Bender's mistreatment of him at the prison.

When the crew tell Bender that he doesn't know enough about folk music to be successful, he explains his analysis of "every folk song in the universe": bad-hearted woman cheats on her good man with a rambler. Bender uses this as a formula for creating his own folk songs. He crashes a performance by Silicon Red and performs one of his songs while Red is distracted, billing himself as "Ramblin' Rodriguez". The audience hates it, and Red explains that Bender's song is insincere. He sends Bender away and says, "Don't come back 'til you've lived a life worth singin' about!"

Act II: "I've never worked on anything all the livelong day, let alone a railroad."
Fry is still making biting comments about Bender's abandonment, as when Leela echoes Silicon Red: "You can't write a real folk song about experiences you haven't had." Fry interjects, "You should write a song about a heartless robot who leaves his best friend to be murdered!" Bender continues to ignore him, and Fry becomes increasingly agitated. Bender follows Zoidberg's suggestion that Bender go work on "the railroad" in order to have the experiences necessary to be a folk singer. In the Rusty Rail, a bar on "the wrong side of the tracks," Bender meets Big Caboose, "a steel-drivin' man workin' the Trans-Universal line." Bender sees Big Caboose, who actually a robot, not a man, as exactly the kind of exciting personality that can be used in a good folk song. Caboose protests that he is nothing special.

As Caboose introduces Bender to his colorful acquaintances, Bender takes notes so he can use these people as characters in his song. At the work site, Bender's job is to lead the singing of the laborers and drink cocktails. After living this grueling life for a while, he begins to create his song. By the time Fry and Leela arrive at Bender's railroad camp to deliver explosives, Bender's song includes the main character, the Jezebel, and the rambler whom she runs to. Fry is still angry at Bender, and when he makes a mean comment, Bender adds a verse for Fry. It tells how Bender needed help to escape the angry Caboose, but Fry, still holding a grudge, refuses to help. Fry gives credit where credit is due, responding, "You have accurately portrayed the nature of my grievance."

Bender is just adding the verse where his main character begins his quest to avenge himself on the rambler when Caboose bursts in and eagerly introduces Bender to his fiancee. She flings herself at Bender as soon as Caboose leaves the room. Bender and the fiancee have sex. Bender is inspired to add another verse to his song. Foreshadowing later developments, the fiancee reveals that her name is Jezebel. Bender sees this as a lucky coincidence, not realizing its significance.

While Fry and Leela hang out at Fry's house, Caboose, who was last seen near the railroad camp far from Earth, bursts in the door with a shotgun in his hands saying that he is here to shoot Bender down for sleeping with Jezebel. At this point, Fry and Leela realize that Bender's song is also playing out in real life. Back at camp, Bender has the idea for his hero to run over the rambler with a train, rather than shooting him. When Bender has this thought, his transmitter sends a train image from Bender's file system to the 3-D printer, and the printer begins to fabricate a train.

Back at camp, just as Bender is saying goodbye to Jezebel, Big Caboose crashes through the wall in the train from the printer and tells Bender that he has come to run him down.

Act III: "That steel-driving moron killed a duplicate instead of me."
Caboose follows as Bender flees all the way to Earth, all the way to the apartment he shares with Fry. He bangs on the door and begs to be let in, but Fry mocks him, reminding him of the verse he had added to the song for Fry. Bender flees to Planet Express with Caboose not far behind. He finds Fry, Leela, and Farnsworth trying to locate him. Bender is confused to see Fry, given that Fry had just mocked him at their apartment in his underwear, but decides to put off thinking about it. Leela explains that his song is coming true, and Bender finally realizes that he is transmitting his thoughts to the 3-D printer, resulting in duplicates even of people, such as the duplicate Fry who mocked Bender at their apartment.

After some brief trouble with a band of giant octopuses, Leela realizes that Bender can "write his way out of" the problem. Fearing for Bender's safety, Leela suggests that Bender make up any old ending that saves him from Caboose. Bender refuses on the grounds of artistic integrity, as he still wishes to create "the best folk song in the universe". Just as he begins to add the next verse to his song, Caboose appears in his train and runs Bender down. At Bender's memorial service, it is revealed that this is not really Bender, but a duplicate fabricated by the 3-D printer. The real Bender arrives and sings the rest of his song, explaining that during the octopus trouble, he made a duplicate of himself with a fatal weakness that the real Bender doesn't have: artistic integrity. Bender and Silicon Red decide to sell out, and they are last seen performing a rap concert.

Production
On 27 January 2012, assistant director Aimee Steinberger commented that she could not go to the FOX-lot screening of the first full-color animation for "7ACV01" due to her work on this episode. On 14 2012, she said that the animatic for the episode was "done" and would be screened "[on the next day] at the FOX lot". On the next day, she stated that she thought that it had gone "pretty well".

As late as 8 January 2013, it was revealed that the title "Forty Percent Leadbelly", which had been, in February 2012, added to the and said by show writer Eric Rogers to be the title of something "supergood", was the episode's title.

On 12 2013, a preview clip for the episode was released during a  interview with Futurama writer Patric Verrone, showing Bender using the help of Dr. Ben Beeler to bring a guitar image stored in his file system into reality by use of a large, the Make-O-Matic. The air date for the second half of season 7 was also revealed.

Lyrics

 * "The Ballad of Me, Ramblin' Rodriguez"
 * The rap song

Trivia

 * This is the only episode of the tenth broadcast season not to be featured in the Vulture preview clip.
 * The episode's title caption is similar to that of "The Route of All Evil".
 * Dr. Ben Beeler is named after Futurama writer Ken Keeler, who wrote this episode. Dr. Beeler also appeared in another episode written by Keeler, "Overclockwise", but he did not speak.
 * Part of the in the guitar's formula for mass production reads "thankMakerBot". According to the commentary, the Make-O-Matic was modelled after  that the  had in the office, which Patric Verrone bought from New York's.
 * Bender's porn drive has a memory size of 100,000 terabytes and his main drive has the memory size of only 1 terabyte.
 * In Bender's Big Score, which was also written by Keeler, the scammers delete 50 terabytes of porn from Bender.
 * This episode confirms Dandy Jim's name, which was first used in a Volume Three menu.
 * When Bender and Jezebel begin making out, a train goes into a tunnel, a metaphor for.
 * Bender is wrong, "octopi" is not a true plural form of "octopus" and originates from a misconception on Latin pluralization rules.
 * The Bender duplicate says that his audience deserves better than some crappy, formulaic ending. This may be a reference to the fact that Ken Keeler wrote the finale.
 * Ramblin' Rodriguez's birth year is given as 2996. This may be Bender's "birth" year, making Bender 16 or 17 at the time of his "death".

Bender's file system

 * MAIN DRIVE (C:) SIZE: 1 Terabyte
 * Main Personality / 3 MB
 * Kill All Humans
 * Steal Zoidberg's Stuff
 * Exotic Burps
 * Become
 * Salmonella.kpg / 1.3 MB (converted to "Salmonella.3df")
 * Penguin Personality / 150 MB
 * PORN DRIVE (XXX:) SIZE: 100,000 Terabytes

Allusions

 * The episode's title is a reference to a running gag that has Bender claim to be 40% of something that keeps changing and the late American .  In the game, Bender is 40% lead.
 * Dr. Brutalov's finger knives may be a reference to the claws of the  or the glove worn by the primary antagonist of the  film series,.
 * When Bender declares that he will duplicate the guitar, Silicon Red states that "with all Salmonella and me been through, her sound is unique". This may be a reference to  violins, as no modern copy has been able to truly replicate their "perfect" sound.
 * On Bender's desktop, there is an image of a hanging on to a  branch with "HANG IN THERE, DUMBASS" written on it, a reference to the "" poster.
 * Fry is trapped in a block of carbonite, a reference to the Star Wars franchise.  was also trapped in carbonite in .
 * T.G.I. Folky's is a reference to the restaurant chain T.G.I. Friday's.
 * The name of Bender's song, "The Ballad of Me, Ramblin' Rodriguez", may be a reference to English musician 's song "". It's also a reference to Bender's catchphrase "me, Bender".
 * The name Ramblin' Rodriguez may be a reference to one of the following.
 * Folk singer.
 * , a children's-show host from series creator Matt Groening's home town of, Oregon.
 * The 1962 song "".

Continuity

 * The Awesome Express uniforms, from "The Route of All Evil", appear once again.
 * Bender's dream of being a folk singer was established in "The Series Has Landed", which was also written by Ken Keeler.
 * Fry previously did karate in "Attack of the Killer App".
 * Bender's address bar reads "C:\BENDER_2716057". 2716057 is Bender's serial number, established in "The Lesser of Two Evils".
 * When Dr. Beeler accesses Bender's main drive in his file system, two folders can be seen within it, "Main Personality" and "Penguin Personality", a reference to when Bender was rebooted in penguin mode in "The Birdbot of Ice-Catraz".
 * Funnily enough, his main personality file has a memory size of 3 MB, whereas his penguin personality has a memory size of 150 MB.
 * A few penguins attend Bender's funeral later in the episode.
 * The prism railroad previously appeared in "The 30% Iron Chef".
 * The front door to Fry and Bender's apartment no longer contains the main cupboard for Bender, from "I, Roommate", at the opening. This means the main  is no longer just a "closet" and simply is the apartment.
 * Leela refers to a phone as a cell phone telephone, as she and Bender did in Into the Wild Green Yonder.
 * The funeral dresses that Leela and Amy wear are the ones from "The Sting".
 * The Wong Hotel & Casino has got a strike through "Wong", possibly because the Martians took it over in "Viva Mars Vegas".
 * Bender previously rapped during the end credits for "Free Will Hunting".

Goofs

 * When the ship lands at the, the crew is already at the door.
 * The autopilot may have been on.
 * When everyone is at T.G.I. Folky's, Hermes doesn't have a pipe in the first shot but later on he does.
 * In the scene where Bender is lying in bed with Jezebel, the left sleeve of his shirt isn't outlined.
 * In the scene where Fry and Leela are watching TV in Fry and Bender's apartment, the shot depicting the television set is clearly the one used for the.
 * Leela states that Big Caboose, Duplicate Fry, and Cookie are simply creations from Bender's song, but Bender met Big Caboose and Cookie before he wrote the song.
 * She is referring to the Big Caboose that was in the apartment. She may also be saying that she met Cookie herself, sometime after Bender presumably wrote him into his song.
 * Dr. Beeler says that a duplicate was created as a decoy in Star Trek: , but, in "Where No Fan Has Gone Before", Star Trek had been outlawed.
 * Dr. Beeler could have found an illegal method of watching Star Trek.

Characters

 * Amy
 * Dr. Ben Beeler
 * Bender
 * Debut: Big Caboose
 * Debut: Cookie
 * Debut: Dr. Brutalov
 * Dandy Jim
 * Dr. Daniel Zenus' robot
 * Professor Farnsworth
 * Debut: Fast Frank Brogan
 * Fry
 * Gus
 * Helper
 * Hermes
 * Humorbot 5.0
 * The Hypnotoad
 * Debut: Jezebel
 * Leela
 * The male nurse
 * The Robot Chef
 * Debut: Silicon Red
 * Zoidberg

Characters at the funeral

 * Abner Doubledeal
 * Albert
 * Angleyne
 * Bev
 * Boxy Robot
 * Bubblegum
 * Destructor
 * Fat-bot
 * Gearshift
 * The human friend
 * Lucy Liu's head
 * Oily
 * Penguins
 * Ruth and Esther
 * The Robot Devil
 * Sally
 * Scruffy
 * Tinny Tim
 * The whale biologist

Places

 * Debut: 11-Worth Variable-Security Prison
 * Alabama
 * Apartment 00100100
 * New Hampshire
 * Debut: Mississippi
 * The Planet Express conference room
 * The Planet Express employee lounge (goof)
 * The Planet Express headquarters
 * The Planet Express kitchen
 * The prism railroad
 * Robot Arms Apartments
 * Debut: The Rusty Rail
 * The technology lab
 * The Temple of Robotology
 * Debut: T.G.I. Folky's
 * The Wong Hotel & Casino

Miscellaneous

 * "Kill all humans"
 * Debut: Salmonella