Conversation so far:
What is the fingerboard controller?
A fingerboard controller is a device that can control a synthesizer.
Who used synthesizers?
Synthesizers were first used in pop music in the 1960s.
Did any other artists use the synthesizer besides the pop music in the 1960s?
EMS synthesizers were used by European art rock and progressive rock acts including Brian Eno and Pink Floyd.

Question: Are they still used today?
Self-contained rewrite: Is the synthesizer still used today?