Sound Contour Demos, part 2 - Contour Recognition Across Dimensions

People are also pretty good at recognizing a contour in one dimension when it is replicated in another dimension. Here the first melody varies in pitch, and the second in loudness. Can you tell which pair have the same contour?

Here the first melody varies in pitch, and the second in brightness:

Brightness-Pitch:

Brightness-Loudness:

Loudness-Brightness:

Loudness-Pitch:

Contours in dimensions other than pitch can also partially support the recognition of familiar melodies.
Click here for the demos.