
1) Alias for A sharp 2) Alias of A sharp 3) Black key near a 4) Black key next to an A 5) Black piano key 6) Black piano key next to an A 7) Clarinet key 8) Common key signature 9) Common trumpet tuning 10) Equivalent of A sharp 11) Half-step above A 12) Key above A 13) Key next to A 14) Key tone 15) Keyboard key
Found on
https://www.crosswordclues.com/clue/b-flat
[jazz club] b-flat (full name: b-flat Acoustic Music & Jazzclub) is a jazz club in Berlin, Germany. ==Overview== The b-flat was launched in 1995 by musician brothers Jannis Zotos and Thanassis Zotos and the actor André Hennecke. From 1997 on Joerg Zieprig has been responsible for booking. The club is located near Hackescher Markt at Rosent...
Found on
http://en.wikipedia.org/wiki/B-flat_(jazz_club)

B flat is old slang for a bug.
Found on
http://www.probertencyclopaedia.com/browse/ZB.HTM
No exact match found.