Here's a test you could do: take a recording of piano and play it back at 1.06x. Do the black keys start sounding like white keys? This distinguishes between so

Here's a test you could do: take a recording of piano and play it back at 1.06x. Do the black keys start sounding like white keys? This distinguishes between something about the way a piano is constructed/played vs whether you have learned something about specific pitches.