Question: Who wrote the music for the musical that James T. Lane played the role of Aaron and Amos?

Context articles: John Amos
Gord Lane
James Byng
Amos Garrett
John Gallagher Jr.
James T. Lane
Amos Lane
King of the Mounties
Seth Armstrong
Chicago (musical)

John Allen Amos Jr. (born December 27, 1939) is an American actor who is best known for his role as James Evans, Sr. on the CBS television series "Good Times" (1974–76).
 Amos' other television work includes roles in "The Mary Tyler Moore Show", the miniseries "Roots", for which he received an Emmy nomination, and a recurring role as Admiral Percy Fitzwallace on "The West Wing".
 Amos also played the father of Will Smith's character's girlfriend, Lisa Wilkes, in "The Fresh Prince of Bel-Air", and he had a recurring role on "In the House" with LL Cool J, as Coach Sam Wilson.
 Amos played the Father of Tommy Strawn (Thomas Mikal Ford) on the long running sitcom, "Martin", as Sgt. Strawn, and another recurring role on "Two and a Half Men" as Chelsea's dad's new lover, Edward Boynton.
 Amos also played Major Grant, the US Special forces officer in "Die Hard 2".
 Amos has also appeared on Broadway and in numerous films in a career that spans four decades.
 He has received nominations for a Primetime Emmy Award and NAACP Image Award.
Gordon Thomas Lawrence Lane (born March 31, 1953) is a Canadian retired professional ice hockey player.
 Lane played in the National Hockey League for the
James Byng (born 1985) is an English actor and vocalist.
 Acting since the age of ten, James made his West End debut in the title role of "Oliver!
" at the London Palladium.
 He played the same role in the national tour of "Oliver!"
 and at the Royal Charity Gala "Hey!
 Mr. Producer", honoring theatrical producer Cameron Mackintosh at the Lyceum Theatre on 8 June 1998.
 Byng also played Gavroche in "Les Misérables" at the Palace Theatre.
 From 2007 to 2008 he was seen on stage at the Theatre Royal, Drury Lane, first playing various ensemble roles and then taking over the part of Frodo Baggins in Matthew Warchus' theatrical adaption of "The Lord of the Rings".
 In 2008-09 Byng appeared in the role of John Darling in the musical "Peter Pan" at the West Yorkshire Playhouse in Leeds.
 He just finished a tour with the West Yorkshire Playhouse production of "The History Boys" by Alan Bennet, in which he played Posner.
 From September until November 2010 Byng was on tour with a production of "Carrie's War" in the role of Nick Willow.
 After performing in "Secret Cinema - Back to the Future" he can currently be seen in "The Grimm Tales" at The Bargehouse at Oxo Tower Wharf.
Amos Garrett (born November 26, 1941, in Detroit, Michigan, United States) is an American-Canadian blues, blues rock musician, guitarist, singer, composer, musical arranger.
 He authored instructional books about music and guitar.
 Garrett holds dual citizenship and was raised in Toronto and Montreal.
 He is best known for his guitar solo on Maria Muldaur's recording "Midnight at the Oasis".
 He wrote books about music such as "Amos Garrett - Stringbending: A Master Class".
John Howard Gallagher Jr. (born June 17, 1984) is an American actor and musician known for originating the role of Moritz Stiefel in Duncan Sheik and Steven Sater's rock musical "Spring Awakening", which earned him a Tony Award for Best Featured Actor in a Musical.
 He also played Johnny in Green Day's Broadway musical, "American Idiot", Lee in the 2011 Broadway production of "Jerusalem," and Edmund in the 2016 Broadway revival of "Long Day's Journey Into Night".
 He portrayed Jim Harper in Aaron Sorkin's drama series "The Newsroom", starred in the HBO mini-series "Olive Kitteridge", and played Emmett DeWitt in "10 Cloverfield Lane".
James T. Lane (born December 25, 1977) is an American actor and dancer.
 He made his Broadway debut with the 2006 revival of "A Chorus Line", playing Richie Walters.
 After that, Lane joined the cast of "Chicago: The Musical", playing the role of Aaron and Amos.
 Other credits include an episode on "One Life to Live" as a James Brown impersonator.
 Lane was last been seen on Broadway in "The Scottsboro Boys", playing the roles of Ozie Powell and Ruby Bates.
 In 2013, Lane reprised his "A Chorus Line" role in The West End.
Amos Lane (March 1, 1778 – September 2, 1849) was a U.S. Representative from Indiana, father of James Henry Lane.
King of the Mounties is a 1942 Republic 12-chapter film serial, directed by William Witney.
 Allan Lane played Sgt. Dave King of the Mounties, with Peggy Drake as heroine Carol Brent, and Abner Biberman played the villainous Japanese admiral Yamata.
Archibald Seth Armstrong is a fictional character from the British ITV soap opera, "Emmerdale", played by Stan Richards from 1978 until 2004.
 The role of Seth began as a temporary "bit part", due to appear for just a few episodes, but proved so popular that further appearances were made until Seth became a full-time regular character in the summer of 1980 when he switched from the Malt Shovel to The Woolpack and continuously annoyed the landlord Amos Brearly and latter Alan Turner who took over in 1991 when Amos left who memorably often shouted "Get out Seth!"
.
 Seth is one of the longest running characters in the history of Emmerdale, and serves as the fourth longest running character in the history of the show.
Chicago is an American musical with music by John Kander, lyrics by Fred Ebb, and book by Ebb and Bob Fosse.
 Set in Prohibition-era Chicago, the musical is based on a 1926 play of the same name by reporter Maurine Dallas Watkins about actual criminals and crimes she reported on.
 The story is a satire on corruption in the administration of criminal justice and the concept of the "celebrity criminal".