The wavelength of this radiation is remarkably pure, but like a musical note it has harmonics associated with it.

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Just as an example, note musical sketch from 2009 where comedy group Axis of Awesome amaze their audience by playing 36 modern pop songs over the same four-chord structure, in one long sequence.

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Instead, take note of the exemplary musical values of this production of a notoriously demanding show.

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In the case of the note, that object is a musical instrument.

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Hearing exactly how each note is meant to sound makes it easier for students to master musical basics during the beginning stages of their educations, providing instant feedback for those that depend on self-teaching.

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"Joe has a great sense of what is most meaningful in the history and tradition of our music, and a real solid musical vision of where to take it, " says Mr. Person in a note in Mr. Alterman's archives.

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Beyond that, musical revelations are forever generated by this performance a phrase or inflection here, a rhythmic accent or soaring note there.

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