Techniques of Polytempic Polymicrotonal Music Creation: Divisions of the Whole Note and Time Signatures, part V.i
"Irrational" Time Signatures What Is a Whole Note? Technically, it is assumed that a whole note lasts four beats. The whole note, lasting four beats, has been a law of music since mensuration was gradually developed and codified throughout the Middle Ages, up to the present day. We simply accept that the value of a whole note is equal to four counts, with one single beat lasting those four counts. This, then, becomes the entirety of the measure (bar) and is called Common Time , or 4/4 time . But the truth is that a whole note really does not mean anything at all. One could argue that a whole note lasts a full measure. But what does that mean? If we stipulate that a whole note, at 100 BPM, is the set tempo, then how do we really quantify the whole note? Each 1/100th part of this whole note lasts approximately .6 seconds. Theoretically, the whole note could last forever. Ostensibly, a time signature is needed to give a quantifiable value to the whole note. Therefore, the wh...