Everything is one. On average, the most notes an average person can play on any one beat is 7. Most of music is one, two, three or four notes per one beat. 98 percent of the time, you can divide a beat into 1, 2, 3 or 4. Time signature, more or less, is a reading and writing device.
In computer writing, I've yet to find a program that I can write advanced rhythmic notation. Even a simple duple. Cake can do a reasonable and readable triplet. To write an advanced rhythmic figure within the computer, one must devise an algorithm (modifying time signature and tempo) to make the figure sound and look correct.
A lie goes around the world before the truth gets it's shoes on. (Mark Twain)
