"When I was working on a project with Jack Bruce and John Hiseman in England, I had written an instrumental which Jack had lyricist Pete Brown write some lyrics for. It's not about cocaine - "White Line" is basically a song about musicians getting taken advantage of by twerps in the music industry (i.e., record company guys, lawyers, music publishing companies, managers, etc.)"
Allan originally recorded a demo of "White Line" with Jack Bruce and John Hiseman; IOU has performed this piece both as an instrumental and as a vocal piece in recent years. After Paul Williams joined IOU in England for their first album project, Pete Brown's lyrics were used for the released version, which included Paul Williams' vocals, with Gary Husband on drums, and Paul Carmichael on bass.
Reaching For The Uncommon Chord, p. 93.