An electronic organ is an electronic keyboard instrument
originally
designed to imitate the sound of a pipe organ. It has developed today
into two forms of the instrument, the imitation pipe organ as used in
churches, and the Hammond organ-style instrument used in more popular
music genres. Electronic
organ
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Wikipedia
A metronome is any device that produces a regulated audible and/or
visual pulse, usually used to establish a steady beat, or
tempo,
measured in beats-per-minute (BPM) for the performance of musical
compositions. It is an invaluable practice tool for musicians that goes
back hundreds of years.
Metronome - Wikipedia
audio-visual-metronome
project page.
Musical Projects and Circuits
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