Monkeysinfezzes Posted March 12, 2008 Share Posted March 12, 2008 Hello, I've asked a couple people at the university, but there answers were all unnecessarily convoluted. It really is this simple, I just suck at math, but this is what I want. No convoluted answer, just straight mathematical formulas. Say, I have a period of time (15 seconds). I've composed 34 beats of music, a quarter note equalling one beat. Notice how I said BEATS, not BARS, because there are time signature changes in this period of time, though the pulse is all the same, nothing is faster or slower, THE SAME TEMPO. What is the mathematic formula for determining MM = XX. The tempo marking. Is it time divided by number of beats, times sixty, times another number? I just want a straight answer, please. And don't ask me to go to a website where it does it automatically. I want to KNOW. Thank you, Ben Quote Link to comment Share on other sites More sharing options...
jada Posted March 12, 2008 Share Posted March 12, 2008 Metronome markings are in beats per minute. You have 34 beats in 15 seconds. Therefore you'd have 68 beats in 30 seconds. Therefore you'd have 136 beats in 60 seconds ... 136 beats per minute. Best to say "quarter note = 136" ... (or the same thing using the standard quarter note symbol, which I can't do in this posting) rather than "MM = 136" if there's likely to be any confusion over the issue. With changing time signatures, I'd definitely go with the "quarter note = 136" format. jada Quote Link to comment Share on other sites More sharing options...
Monkeysinfezzes Posted March 12, 2008 Author Share Posted March 12, 2008 Thank you, but no thank you for not giving me a simple mathematical formula :P This is how I take it. (60 / time ) = x x time number of beats equals what I want Thank you Quote Link to comment Share on other sites More sharing options...
EldKatt Posted March 12, 2008 Share Posted March 12, 2008 MM = (60 / t) * n = 60n / t For n beats occuring in t seconds. OK? Edit: Oh, that seems to be what you just said. Quote Link to comment Share on other sites More sharing options...
Dan Gilbert Posted March 12, 2008 Share Posted March 12, 2008 No offense guys, but....did any of you guys besides Eldkatt take algebra? Quote Link to comment Share on other sites More sharing options...
robinjessome Posted March 12, 2008 Share Posted March 12, 2008 No offense guys, but....did any of you guys besides Eldkatt take algebra? :huh: ?? Quote Link to comment Share on other sites More sharing options...
Saiming Posted March 12, 2008 Share Posted March 12, 2008 :huh:?? He is gently indicated to us composers that we suck... KILL HIM :laugh: (joke) Quote Link to comment Share on other sites More sharing options...
maestro3092 Posted March 12, 2008 Share Posted March 12, 2008 Its a proportion... time you have/beats you have for that time = 60 (to get beats per minute)/x beats in that minute in this case its 15/34 = 60/x cross multiply and get 2040=15x divide both sides by 15 and you get 136 BPM Quote Link to comment Share on other sites More sharing options...
robinjessome Posted March 12, 2008 Share Posted March 12, 2008 (60 / time ) = xx time number of beats equals what I want MM = (60 / t) * n = 60n / tFor n beats occuring in t seconds. OK? time you have/beats you have for that time = 60 (to get beats per minute)/x beats in that minutein this case its 15/34 = 60/x cross multiply and get 2040=15x divide both sides by 15 and you get 136 BPM No offense guys, but....did any of you guys besides Eldkatt take algebra? No offence, but WHY are you guys making this SOOOOO complicated? I didn't reply because I figured grade five math class would have taken care of this for me. Find out how many beats per second, then multiply by 60. i.e. 34 Quote Link to comment Share on other sites More sharing options...
EldKatt Posted March 13, 2008 Share Posted March 13, 2008 No offence, but WHY are you guys making this SOOOOO complicated? I didn't reply because I figured grade five math class would have taken care of this for me.Find out how many beats per second, then multiply by 60. i.e. 34 Quote Link to comment Share on other sites More sharing options...
Alan Posted March 13, 2008 Share Posted March 13, 2008 Well, you don't have to do any cross-multiplying... that makes it somewhat easier. :huh: Quote Link to comment Share on other sites More sharing options...
jujimufu Posted March 14, 2008 Share Posted March 14, 2008 I thought this thread would be over after 2 posts, one replying to the question and another from the thread-opener saying "thanks"... :( Quote Link to comment Share on other sites More sharing options...
maestro3092 Posted March 14, 2008 Share Posted March 14, 2008 I thought this thread would be over after 2 posts, one replying to the question and another from the thread-opener saying "thanks"... :( you would think...right?? and cross multiplying is just up my alley....i was just giving my imput on the situation.... Quote Link to comment Share on other sites More sharing options...
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