useless trivia: What Word Means: A First Name - Unstable - Likely To Roll?

Questions

G Art Rock band led by Anton Fier ("visions of excess")?

"Garota de -------"??

G Elevator music maker who had a hit with "songbird".?

G His punny album titles include "kihntinued" & "kihnsolidation" (full name!)?

G Jazz Saxophonist well-known for playing "Girl from Ipanema"?