File:Sum and difference tones A220.mid

Sum_and_difference_tones_A220.mid (file size: 359 bytes, MIME type: audio/midi)

This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

Summary

DescriptionSum and difference tones A220.mid	English: Sum and difference tones of A220 and unison, just perfect fifth, and octave. Note that this is not produced through ring modulation of two notes, but is four separate notes.
Date	13 November 2012, 22:52:24
Source	Own work
Author	Hyacinth
Other versions	File:Sum and difference tones A220.png

Licensing

This media depicts a musical interval outside of a specific musical context. Intervals consist of an ordering of two pitches or pitch classes (no "distinctiveness"), may be used in compositions by multiple composers ("common material"), and may not be readily apparent as distinct in compositions. As such, a musical interval is a musical concept or technique, which is considered too simple to be eligible for copyright protection, or which consists only of technique, with no original creative input.

This media depicts a musical concept or technique, which is considered too simple to be eligible for copyright protection, or which consists only of technique, with no original creative input.

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Dimensions	User	Comment
current	09:10, 28 February 2017	0.0 s (359 bytes)	Burninthruthesky	Correct one pitch bend.
	08:46, 28 February 2017	0.0 s (359 bytes)	Burninthruthesky	Added track to fix conflicting pitch bends on same channel.
	05:55, 14 November 2012	0.0 s (348 bytes)	Hyacinth	User created page with UploadWizard