Posted by Kenneth Sloan on February 22, 2003 at 01:45:00:
In Reply to: Re: Re: Re: 8va heros posted by Rick Denney on February 21, 2003 at 14:55:44:
odd-numbered overtones are what you need (at the right amplitudes!) to make a square wave - not very musical.
Playing up a fifth will give the pedal as a difference tone, without all those annoying overtones! Plus, it's usually easier to play up a fifth rather than down an octave.