Do you mean Vangelis Papathanassiou of Chariots of Fire, Blade Runner fame? Yes he does. Niko Papathanassiou also had a career in the music business, producing Italian progressive acts in the eighties.
Your half-brother's full brother would also be your half-brother. Your half-brother's half-brother (assuming he isn't your full brother) is probably what we officially call "no relation," though he...
Drummer John Hartman arrived in California in 1969 determined to meet Skip Spence of Moby Grape and join an aborted Grape reunion. Spence introduced Hartman to singer, guitarist and songwriter Tom...