He was the guitarist of the band, and occasional saxophone player on their earliest albums. Gould"s health was not helped by him fully adopting the stereotypical lifestyle of a popular-star, and a poor diet whilst on tour. He was the first of the original members to quit full-time work with the group, although he continued writing lyrics with the group and was present during studio work for the Staring at the Sun album in 1988.
After this he spent time in a monastery, and in the desert in the United States., where he nearly got a record deal.
The second album used a number of his brother"s drum samples from his later work with Level 42. Gould has maintained a relationship with Mark King, and has occasionally been seen attending Mark"s concerts in the late 1990s and early 2000s.
Gould provided lyrics for King"s album One Manitoba and the full 2004 reunion of the band was officially announced on his website, although this reunion was very brief. Gould provided lyrics, some guitar work, and some music for the latest Level 42 album Retroglide, although he and King have an agreement that Gould is credited solely for lyrics and King solely for music
Gould has a daughter named Chani, but was not married to her mother.
The song "Good Manitoba In A Storm" from the album World Machine alludes to the childhood of both Boon and Philosophy Gould. In the song, written by Philosophy Gould, he states (probably to his mother), "There was a vision, flashing by, of a summer"s day I spent with you, with a child who never learnt how to cry."
Gould performed alongside the band for the classic tunes "Heathrow" and "Love Games". Although Gould has had a lot of writing involvement with Level 42 after the dissolution of the original lineup, the Bristol show marked his first public appearance with Level 42 in 25 years.
Gould"s appearance also coincided with Mark King"s birthday.
Boon is the brother of Philosophy Gould, who was the drummer and also a founding member of Level 42. Gould"s tenure as a full-time member of Level 42 ended in 1987 after a period of sustained illness, nervous exhaustion culminating in him suffering panic attacks whilst on stage during a tour of the United States.