What is the connection between time-signature, beat, and tempo? Mainly time-signature and tempo. Tempo is beats-per-minute I know, but does the time-signature affect it?
For example, in a 120bpm tempo, are note durations of 4/4 time-signature different from 2/4 time-signature? Or how about 4/4 with 6/8? Or is it merely just for adjusting/displaying the notes per measure?
Some of you may be wondering why I am confused. This is because, isnt the bottom part of a time-signature denote which notes are considered as beats? So, if 4/4 at 120bpm = 120 quarter beats per minute, then how much will a 6/8 (8th notes are considered as beats) have as beats per minute?