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spuki

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  1. In Lesson 4, it is statet that "You can see the LENGTH-WEIGHT replaces previously 'sounding' lengths with rest-lengths throughout the stream of pitches. " But actually Length-Weight INSERTS rests. Sounding pitches are not replaced, but shiftet. Is that correct?
  2. spuki

    spuki

  3. Hallo, newbie here I'm just starting with OM and playing around with the tutorials. I slightly changed tutorial #4 and run into something strange. If i run the script as posted below, all works as expected. But when i change the function reverse to nreverse (and nreverse is the oficially documented name of the function) the omn result will leave the right hand empty. Why ist that? And why does reverse work as i expect it to work? And, another thing: i dont understand what the term seed will do. Will it make random functions behave always the same as long as the seed is the same? ...and what does the number following the seed mean? Thank you !! Best, Sebasian (setf pitches (gen-repeat 5 '(c4 cs4 fs4 g4 c5 cs5))) (setf transposed-pitches (gen-repeat 5 (pitch-transpose -24 pitches))) (setf lengths (span pitches '(e))) (setf lengths-rests (length-weight lengths :weight '(2 1) :seed 12)) (setf left-lengths (reverse lengths-rests)) (setf piano-righthand (make-omn :length lengths-rests :pitch pitches :velocity'(mp))) (setf piano-lefthand (make-omn :length left-lengths :pitch transposed-pitches :velocity '(f))) (setf timesigs (get-time-signature left-lengths)) (def-score lesson-4 (:key-signature 'chromatic :time-signature '( 5 8 ) :tempo 190 :layout (piano-layout 'piano-rh 'piano-lh)) (piano-rh :omn piano-righthand :channel 1 :sound 'gm :program 'acoustic-grand-piano) (piano-lh :omn piano-lefthand) )
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