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7

If you have 4/2 (for same BPM)the half note duration is now equal to 0.5 seconds? Yes. The bottom number indicates the reference symbol used to measure the unit pulse. Therefore, half-notes are played at 120bpm. As others have suggested, almost zero musicians think of notes as durations of fractions of a second. If that is so the lower number in ...


5

The lower number ties the beat length to a particular musical symbol. N/2 indicates so many minims (half notes) to the bar, N/4 = so many crotchets (quarter notes), N/8 = so many quavers (eighth notes). One reason for using a particular note length versus another is purely for convenient notation. e.g in compound time signatures like 6/8, 9/8, etc groups of ...


4

While mathematically it indeed seems that way, 4/4 and 2/2 are not the same thing, just like 3/4 and 6/8 aren't. Technically, you can perfectly write a 4/4 piece down using a 2/2 time signature, but there are different nuances to each of these time signatures, which make them quite an important bit of information. I suggest you read the answer to this ...


3

I think the confusion here is mixing two different conventions. The notion of "BPM" arose from tempo indications in MIDI sequencing, in music genres where staff notation isn't used at all, or is not very important. If you want to relate MIDI tempo to staff notation, the standard (defined in the Standard Midi File Format specification) is that "beat" = ...


1

A time signature seems unnecessary for what you're describing, unless "moving a note" would invoke "moving all similar notes" where similar means the same note at the same spot in a measure: the concept of measure would require a time signature. If you don't need that concept then you don't need the associated time signature. For tempo... same thing: do you ...


1

Mathematically, yes you can play a waltz in 6/8 instead of 3/4. Musically, it's hard to. The difference between these two times signatures is the strong beats that consist each measure. In a 3/4 measure, we have 1 as the strong beat, whereas 2 and 3 are not strong. In 6/8 measure, we have 1 as strong beat and 4 as slightly strong beat; the other beats ...



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