In Tablature mode, I input frets onto the six strings and the neck is divided by time. frets --> strings,time In Box mode, which is more familiar, actually, I input time onto the six strings and the neck is divided by frets. time --> strings,frets In Tablature mode, I set […]
Daily Archives: August 27, 2020
2 posts
(%i2) log2(x):=log(x)/log(2) log(x) (%o2) log2(x) := ------ log(2) (%i3) midi_number(freq):=69+12*log2(freq/440) freq (%o3) midi_number(freq) := 69 + 12 log2(----) 440 (%i4) midi2freq(m):=440*2^((m-69)/12) m - 69 ------ 12 (%o4) midi2freq(m) := 440 2 Middle C has MIDI number 60. (%i6) midi2freq(60),numer; (%o6) 261.6255653005986 Frequency 440 Hz corresponds with MIDI number 69 (%i8) […]