Description
Expected Behavior
In order for it to be more apparent that the pitch effect corresponds to octaves of sound, a value like 60 or 120 should be used. 120 is a full octave, but it's greater than the 100% max for the pan left/right effect, so 60 might be a more useful value.
Relatedly, perhaps the "change pitch effect" block should be 20, which is a sixth of an octave and will make it more apparent to a playful user that 20 fits nicely into 60 and 120 and so on. (Not that 10 doesn't fit into 60, etc, obviously; but it's more apparent with 20 I think, a 1/6th of an octave vs. a 1/12th.) 20 also divides nicely into 100, so it works well with the percentage-based pan left/right block.
Actual Behavior
The default value of the "set audio effect" block is 100, which is useful in that it means "100%" for the pan left/right effect, but that is not the default effect selected - pitch is, and 100 does not have any particularly interesting meaning in pitch (it means 5/6ths of an octave up).
Steps to Reproduce
Take a look at the "set effect to" and "change effect by" blocks in the sound category: