

It's used in scientific pitch notation (also known as American standard pitch notation, and international pitch notation). In fact its use goes back centuries, and in wide use the past hundred years.

(This was done by at least one sequencer software maker.)īut again, C4 has proved the most popular. So it makes sense that someone would note middle C as C5, so that the lowest note is C0, so that the octave index starts at 0, particularly convenient for software. For Yamaha that would be C-2, for Roland C-1. But note that there are two more possible C notes, MIDI note value 0 being the lowest. Download your MIDI file Start Conversion Popular conversions of NOTES file is free tool to use, and we have 100.000 of conversions daily. Start converting NOTES to MIDI Selected format: MIDI 3. Rival Roland went with C4, where the lowest C on piano is C1. It’s simple and easy to convert NOTES to MIDI or any other supported file. Notably, Yamaha went with the C3 notation for their keyboards (including for their hugely successful DX7, an early MIDI keyboard), which makes some sense in that the lowest C on a piano would correspond to C0. The MIDI specification refers to middle C as MIDI note 60, and does not use the octave notation. C4 is by far the most widely used designation for middle C.
