garthsundem writes "Diana Deutsch, president of the Society for Music Perception and Cognition, says that perfect pitch can be trained — start early by labeling a keyboard with colors or animal stickers. Once you've paired tone with meaning, you can switch it later to note names, like A, B, C."
We warn the reader in advance that the proof presented here depends on a
clever but highly unmotivated trick.
-- Howard Anton, "Elementary Linear Algebra"