delta The number of beats until the next event. Both of these can be calculated from higher-level abstractions: \dur, \stretch and \legato. Rhythm is based on \delta and \sustain event keys. The default event prototype is not meant to enforce one model of pitch or rhythm over any other it simply provides these options, which you may use if they suit the task, or ignore or override if your task calls for something else entirely. Note also that there is no obligation to use these constructs. If your pattern specifies \delta directly, \dur and \stretch are ignored. The calculations may be bypassed by providing another value for the calculated item. The descriptions below start with the ending value that will actually be used, following up with the other values that are used in the calculations: e.g., \delta is based on \dur and \stretch. The default event prototype includes logic to convert higher-level abstractions into the physical parameters that are useful for synthesis. Using the default event prototype, pitch and rhythm can be specified in Pbind at different levels depending on the musical requirement. See also: Pattern Guide 06g: Data Sharing, Pattern Guide 08: Event Types and Parameters Pitch and rhythm conversions in the default event
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