Consulting the online experts, I see pitch as being a function solely of frequency. Loudness is another attribute of what one hears. There might be some psychoa

Consulting the online experts, I see pitch as being a function solely of frequency. Loudness is another attribute of what one hears. There might be some psychoacoustic magic going on that could cause one to interpret a single frequency to have a variable pitch based upon the amplitude of the sound but that's a artifact of the listener, not the sound. Look at it this way. If you stike middle A on a piano with different intensities and monitor the sound using a frequency analyzer, the analzyer will report a sound at approximately 440 Hz regardless of how soft or hard the key is struck.