danigb
commented
8 years ago Hi! I'm outside, so I send a quick reply: last week i've been implementing similar ideas in scorejs (branch "v4"). It's not documented but test and examples are self-explanatory. I'm not sure if a list of transformations is useful without a way to combine them into new ones or a different extension mechanism. Anyway i would think in your proposal and try to get a "core" transformation list.
Regards, Dani
El 02/04/2016, a las 13:16, stephband notifications@github.com escribió:
@danigb
So, can I start a discussion about possible transforms? Do you have an idea of the transforms you would like to see? Some obvious transforms that spring to mind ...
'transpose', n Where n is a positive or negative float that describes the number of semitones to transpose by.
'diatonic-transpose', mode, n Where mode describes a scale and key, and n the number of steps to transpose by. It is not clear to me what to do with notes that lie between notes in the defined mode in a way that makes musical sense.
'invert', note Where note defines a pitch that a note or sequence of notes is inverted around.
'diatonic-invert', mode, note Where mode describes the scale and key and note defines a pitch that a note or sequence of notes is inverted around diatonically. Again, it is not clear to me what to do with notes that lie between notes in the defined mode.
'translate', time Where time is a positive or negative float that describing a shift in time.
'quantize', ref, strength Where ref references another sequence of events, and strength defines how much time shift to apply to align the current event or events with the events in the referenced sequence.
'velocity-curve', ... ...
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@danigb
So, can I start a discussion about possible transforms? Do you have an idea of the transforms you would like to see? Some obvious transforms that spring to mind ...
Where n is a positive or negative float that describes the number of semitones to transpose by.
Where mode describes a scale and key, and n the number of steps to transpose by. It is not clear to me what to do with notes that lie between notes in the defined mode in a way that makes musical sense.
Where note defines a pitch that a note or sequence of notes is inverted around.
Where mode describes the scale and key and note defines a pitch that a note or sequence of notes is inverted around diatonically. Again, it is not clear to me what to do with notes that lie between notes in the defined mode.
Where time is a positive or negative float that describing a shift in time.
Where ref references another sequence of events, and strength defines how much time shift to apply to align the current event or events with the events in the referenced sequence.
...