Bill Ruppert (born June 10, 1954) is an American musician, known as one of the most prolific and widely heard studio guitarists, logging nearly 10,000 sessions in a career spanning over 30 years.As a first-call studio guitarist and session musician, Ruppert has worked with a roster of top artist and commercial clients since the 1980s.
He recorded guitar with Bryan Ferry of Roxy Music, Phil Collins of Genesis, Chuck Mangione and Richie Havens.
In conjunction with Electro-Harmonix, he has created a series of Effectology videos using effects pedals to imitate different instruments, recreate classic songs, and mimic real-life sounds.
Working with Electro-Harmonix, Ruppert was one of the principle designers of the B9/C9 organ machines as well as the Key9 electric piano machine, Mel9 Mellotron emulator, Synth9 synth machine and Bass9 bass machine.
Ruppert has also worked with the Kemper profiling amplifier company as a consultant and sound designer.