Ramping

i statement pfields containing the symbol < will be replaced by values derived from linear interpolation of a time-based ramp. Ramps are anchored at each end by the first real number found in the same pfield of a preceding and following note played by the same instrument. E.g.: the statements

               i1   0    1    100
               i1   1    1    <
               i1   2    1    <
               i1   3    1    400
               i1   4    1    <
               i1   5    1    0

will result in

               i1   0    1    100 
               i1   1    1    200
               i1   2    1    300
               i1   3    1    400
               i1   4    1    200
               i1   5    1    0

Ramps cannot cross a Section boundary. Ramps cannot be anchored by an np or pp symbol (although they may be referenced by these). Ramp symbols are illegal in p1, p2 and p3. Ramp symbols may be Carried. Note, however, that while the Carry feature will propagate ramp symbols through unsorted statements, the operation that interprets these symbols is acting on a time-warped and fully sorted version of the score. In fact, time-based linear interpolation is based on warped score-time, so that a ramp which spans a group of accelerating notes will remain linear with respect to strict chronological time.