First of all, is the beat in BPM based on the quarter note or the fundamental beat of each time signature?
For example, if it's 3/2 time and it's 80 BPM, does the half note go in 80 times in a minute?
The reason I'm confused about this is because I thought quarter notes were the standard in BPM.
In other words, I thought that a half note on the BPM would take two beats to sound.
But No matter how many examples of playing I looked for, they all played half notes in sync with the one-beat time shown on the BPM.
Maybe I'm misunderstanding, but if everything is decided by the BPM... what does time signature mean? That's what I don't understand.