music frequency

Close! Middle C is 261.63Hz. Nice links Pabelson, but where is the triangle? Oh the horror ... the horror! Liszt they have forsaken thee..... ;-)

I should mention I was referring to the fundamental frequencies of the instruments.

My observations include the total music waveform, harmonics and all. We could debate whether a harmonic that is 40 dB down is important, but it is 40 dB down.

Nice links, Thank you.

I look for a speaker that will output down to 40Hz. Thanks for the responses.

Picking 40Hz means you will loose much of the reproduction of the bottom 7 keys on a piano and organ.

Remember that in general, a speaker that goes to 30Hz at 3db down will reproduce 40Hz notes clearer and more realistically than a speaker that goes to 40Hz at 3 db down.