Comma pump: Difference between revisions

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	<span style="display: block; text-align: right;">[[:de:Kommapumpe Deutsch]]</span>		<span style="display: block; text-align: right;">[[:de:Kommapumpe\|Deutsch]]</span>

	A '''comma pump''' is a harmonic sequence (or chord progression) wherein the tuning base shifts up or down by one [[Comma\|comma]]. This means that in [[Just_intonation\|JI]], the chord prgression would not return to the original starting pitch, but a different pitch that is a comma off. If the chord progression is repeated many times, the tuning will steadily rise or fall (and also an unlimited number of different pitches would be required).		A '''comma pump''' is a harmonic sequence (or chord progression) wherein the tuning base shifts up or down by one [[Comma\|comma]]. This means that in [[Just_intonation\|JI]], the chord prgression would not return to the original starting pitch, but a different pitch that is a comma off. If the chord progression is repeated many times, the tuning will steadily rise or fall (and also an unlimited number of different pitches would be required).