Question: What type of occupation Johnny Joyce and Paul Simon and have in common?

Context articles: The Paul Simon Songbook
Paul Simon (album)
Recorded as Jerry Landis
Two Can Dream Alone
Johnny Joyce
Paul Simon in Concert: Live Rhymin'
Paul Simon
I Am a Rock
Paul Simon 1964/1993
So Long, Frank Lloyd Wright

The Paul Simon Songbook is the first solo studio album by Paul Simon.
 It was recorded in London and released in the UK in 1965 and was supposedly deleted in 1969 at Simon's request.
 It was made available in the U.S. as part of the LP box set "Paul Simon: Collected Works" (1981).
 The album was produced by Reginald Warburton and Stanley West as CBS Records LP 62579; remastered CD Columbia/Legacy 90281.
Paul Simon is the second studio album by American singer-songwriter Paul Simon as a solo artist.
 It was released in January 1972, nearly two years after he split up with longtime musical partner Art Garfunkel.
 His first solo album was recorded in England in 1965 but remained unreleased in the U.S. (except for a brief period in 1969) until 1981, when it appeared in the 5-LP "Collected Works" boxed set.
 Originally released on Columbia Records, "Paul Simon" was then issued under the Warner Bros. label and is now back with Columbia through Sony.
 The album topped the charts in the United Kingdom, Japan and Norway and reached No. 4 on the U.S. Billboard Pop Albums.
 In 1986 it was certified platinum.
Recorded as Jerry Landis is a compilation album of music by singer, songwriter, and guitarist Paul Simon, released in 2006.
 This album contains 18 songs recorded before Simon & Garfunkel released their first album, "Wednesday Morning, 3 A.M.".
 All songs are by Paul Simon except the song "Beat Love", which is a contemporary recording by Art Garfunkel, recorded under the name "Artie Garr".
 This album was released six years after an album of Simon & Garfunkel songs, from the same era, that contained a mix of Simon & Garfunkel recordings (under the name "Tom & Jerry"), and Paul Simon and Art Garfunkel songs.
 He recorded many of the songs on these albums under different aliases, such as "Jerry Landis", "True Taylor" and "Paul Kane".
Two Can Dream Alone is a compilation album by folk rock duo Simon & Garfunkel.
 The album is a collection of songs from before they recorded their debut album "Wednesday Morning, 3 A.M.".
 It also has solo recordings by both Paul Simon and Art Garfunkel during this era of their careers.
 It contains all of Simon & Garfunkel's singles from these years.
 Six years after its release, a similar album was released which contains all Paul Simon songs except for "Beat Love" by Art Garfunkel, which appears on both albums.
 The songs on that album are also from their early years.
John Joyce (1933–2004) was a legend on the British folk music scene.
 He dedicated his musical career to the twelve-string guitar. "
Blues" was his first love and he appeared with such Blues greats as Howlin' Wolf, Jesse Fuller, Reverend Gary Davis, Sonny Terry, and Brownie McGhee.
 Throughout his long career he has also played/appeared with The Levee Breakers, Davy Graham, Bert Jansch, John Renbourn, Paul Simon, Roy Harper, Al Stewart, Sandy Denny, Strawbs, Velvet Opera, Ralph McTell, and Paul Brett.
 He was also highly regarded as one of the best guitar repairers in the United Kingdom.
 He designed the 'JJ' series and the best selling 'Sandpiper' range of guitars made by Aria.
Paul Simon in Concert: Live Rhymin' is an album by Paul Simon, released in March 1974 by Columbia Records.
 It was recorded in the wake of the release of "There Goes Rhymin' Simon – which produced a number of hit singles ("Kodachrome" and "Loves Me Like a Rock") and radio staples (as "Something So Right" and "Take Me to the Mardi Gras") during Simon's 1973-74 tour, at Nassau Veterans Memorial Coliseum, New York, July 10th, 1973. "
 However, the album presents a very truncated version of the concerts he performed on this tour, which consisted of up to 24 songs.
 The album fails to note where the performances were recorded, although according to liner notes in a later Simon compilation, "Duncan" is from a London concert and "American Tune" was recorded in New York City.
Paul Frederic Simon (born October 13, 1941) is an American musician, singer-songwriter and actor.
 Simon's musical career has spanned seven decades, with his fame and commercial success beginning as half of the duo Simon & Garfunkel, which was formed in 1964 with Art Garfunkel.
 Simon was responsible for writing nearly all of the pair's songs, including three that reached No. 1 on the U.S. singles charts: "The Sound of Silence", "Mrs. Robinson", and "Bridge over Troubled Water".
"I Am a Rock" is a song written by Paul Simon.
 It was first performed by Simon alone as the opening track on his album "The Paul Simon Songbook" which he originally recorded and released in August 1965, only in the United Kingdom.
 Paul Simon and Art Garfunkel, as the American folk rock duo Simon and Garfunkel, re-recorded it on December 14, 1965, and included as the final track on their album "Sounds of Silence", which they released on January 17, 1966.
Paul Simon 1964/1993 is a compilation album released in 1993 by Paul Simon.
 It contains a collection of recordings ranging from his earliest collaboration with Art Garfunkel (the 1957 release "Hey, Schoolgirl") and further Simon & Garfunkel hits to songs from his subsequent solo career.
 Despite carrying the title "Paul Simon 1964/1993", the music on this compilation was recorded between 1957 and 1991, and no tracks were recorded in 1964 or 1993.
"So Long, Frank Lloyd Wright" is a song written by Paul Simon that was originally released on Simon & Garfunkel's 1970 album "Bridge over Troubled Water".
 It has since been released on several Simon & Garfunkel compilation albums.
 It has also been recorded by the London Pops Orchestra and Joe Chindamo trio.
 Art Garfunkel has stated that the origin of the song came from his request that Paul Simon write a song about the famous architect Frank Lloyd Wright while Simon has stated that he wrote the song, despite not knowing who Wright was.
 Garfunkel sings lead on the majority of the song while Simon sings on the bridge.