Stretching and compression: Difference between revisions
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'''Stretching and compression''' are operations that can be done on melodies, scales, or chords. Stretching can be called '''tens''' and compression can be called '''tract'''. | {{stub}} | ||
'''Stretching and compression''' are (usually logarithmic) operations that can be done on melodies, scales, or chords. Stretching can be called '''tens''' and compression can be called '''tract'''. | |||
== Scales == | == Scales == | ||
A scale pattern can be compressed by inserting a(n arbitrary but usually small) step size; this is how [[oneirotonic]] is obtained from MOS diatonic (LLsLLLs -> LLsLsLLs), and similarly [[pinedye]] (LLmLLLm -> LLmLLsLm). A scale pattern may be stretched by removing a step (MOS diatonic LLsLLLs -> machinoid LLLLLs) or making it smaller (MOS diatonic LLsLLLs -> smitonic LLsLsLs). | |||
== Chords == | |||
Stretched versions of chords can be indicated by using the prefix ''tens-'', and compressed versions of chords can be indicated by using the prefix ''tract-''. (Example: [[oneirotonic]] tract-diatonic chords such as the tract-major triad which is 0s-M2s-M4s in TAMNAMS notation) | |||
== Linear stretching and compression == | |||
Latest revision as of 03:30, 6 July 2026
Stretching and compression are (usually logarithmic) operations that can be done on melodies, scales, or chords. Stretching can be called tens and compression can be called tract.
Scales
A scale pattern can be compressed by inserting a(n arbitrary but usually small) step size; this is how oneirotonic is obtained from MOS diatonic (LLsLLLs -> LLsLsLLs), and similarly pinedye (LLmLLLm -> LLmLLsLm). A scale pattern may be stretched by removing a step (MOS diatonic LLsLLLs -> machinoid LLLLLs) or making it smaller (MOS diatonic LLsLLLs -> smitonic LLsLsLs).
Chords
Stretched versions of chords can be indicated by using the prefix tens-, and compressed versions of chords can be indicated by using the prefix tract-. (Example: oneirotonic tract-diatonic chords such as the tract-major triad which is 0s-M2s-M4s in TAMNAMS notation)
