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Found 9 results

  1. I have a basic lisp question - I'd like to create a function that takes a tonality as its argument and performs something like the following line: (setf test (tonality-map '((pcs '3-2) :root b3 :map shift) (make-scale 'c4 12))) So (defun pitches (tonality) .....) - and then (pitches (pcs '3-2)) would return the list (b3 c4 d4 b4 c5 d5 b5 c6 d6 b6 c7 d7) Thanks so much!
  2. like this (?)... ;;; mapping to MAJOR (setf sort-seq (integer-to-pitch (flatten (gen-sort (rnd-order (gen-integer 24)) :type 'selection)))) (def-score example-score (:key-signature 'atonal :time-signature '(4 4) :tempo 90 :layout (treble-layout 'seq)) (seq :omn (make-omn :pitch (setf n (tonality-map '(major :map step :root 'c4) sort-seq)) :length (gen-repeat (length (flatten n)) '(t))))) ;;; mapping to MESSIAEN-mode (setf sort-seq (integer-to-pitch (flatten (ge
  3. I like how the function tonality-map allows specifying some input harmony (called tonality) and raw music, where the "raw" music is then quasi-quantised into the given harmony. However, I would like to control in which octaves specific tones are allowed to occur. tonality-map allows specifying an underlying harmony that ranges over multiple octaves, but it seems that internally only octave-less pitch classes are used, and any tone in the harmony can occur in any octave in the result. By contrast, in the spectral tradition of music thinking, you change the underlying spectrum if yo
  4. Hello, I'm a little confused about how to include the :map step tonality form in this example. I start with my tonality-series: (setf g-tonality (tonality-series '( (0 3 5 7 10)) :root '(8 11 4 7 0 4 11 4 7 0 3 8 0 7 0 4 11 4
  5. Added new keyword :type to TONALITY-MAP and TONALITY-SERIES function with three options: prime-form, normal-order and row. Examples: (setf seq2 (rnd-row :type :pitch :seed 345)) => (c4 d4 g4 f4 cs4 b4 gs4 e4 fs4 a4 bb4 eb4) (tonality-map '((0 1 11 6 3 2 4 9) :map step :type normal-order) seq2) => (a4 c4 fs4 eb4 b4 cs5 a5 d4 e4 b5 c5 cs4) (tonality-map '((0 1 11 6 3 2 4 9) :map step :type prime-form) seq2) => (c4 eb4 a4 fs4 d4 e5 c5 f4 g4 d5 eb5 e4) (tonality-map '((0 1 11 6 3 2 4 9) :map step :type row) seq2) => (c4 d4 b4 fs4 cs4 eb5 c5 e4 a4 cs5 d5 e
  6. Changes to TONALITY-MAP function: The map shift name is changed to step. The sort by default is nil. The function TONALITY-MAP can be used to map tonalities on to a chromatic pitch series. There are two types of map: step and NIL. The step map use the sequence interval steps to map the tonalities on to the sequence. The map NIL use the sequence integers to map the tonalities to the closest integer on to the sequence. In the following example we use the closest type map: (tonality-map '((0 2 4 7 9 11)) '(c4 cs4 d4 cs4 eb4 f4 e4)) => (c4 d4 d4 c4 e
  7. i'm sure that it would also work with tonality-map, but i was interested to code a simple version for my own to understand all the things :-) ;;; i wanted to map every interval-sequence to every possible pitchfield... ;;; all the sequences are "centered" (i needed that for my project) ;;; with :base you could move up and down the center ;;; :pitchfield has to be a OMN-pitch-sequence ;;; FUNCTION (defun interval-projection-on-pitchfield (&key pitchfield intervals (base 0)) (let ((integers (pitch-to-integer (interval-to-pitch intervals))) (base-0-integers)
  8. Here is a small project to explore pitch-mapping. There are some results but not the best ones yet. If anyone has an idea on how to improve this I would really appreciate the advice. What would be ideal as the result would be the same musical list (and notation) but with the transformed pitches. As you can see from the result, there are many changes and the result is not clean but rather seriously garbled instead! The goal is to remap the pitch content of the original with a new tonality-map. Here is the beginning attempt. A confusing element is the return of NIL when parsing
  9. Greetings friends, I have a little project I am working on - to map a two-octave scale 12-tone scale. I want to be able to re-write pitches into this scale and to use the results in both harmonic and melodic contexts. However, I am finding some puzzlement! Here is a code fragment of what I am working on: (create-tonality 12-tone-2 '(0 1 3 4 7 8 10 11 14 17 18 21)) (tonality-map '(12-tone-2 :root c4 :shift t) '(c3 d3 e3 f3)) My thought is that it SHOULD result in: 0 1 3 4 - c cs ds e - as the result. S
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