Ha ha, yes it's late. Of course I meant "minor third" in my example. Don't stand me against the wall for it.
D.
Derek Holzer wrote:
4, 6:5-minor_third; 5, 5:4-major_third;
I.e. major third = 6:5, and 6 divided by 5 is 1.2, so to transpose
up a
major third, multiply original frequency by 1.2.
Or, 5 divided by 6 is 0.83333333, so multiply by that to transpose
down
a major third. Or cook up something with [expr] that does the job more precisely, like [expr f$1 * (5/6)] etc etc...