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Using "/@" Effectively

  • To: mathgroup at smc.vnet.net
  • Subject: [mg104292] Using "/@" Effectively
  • From: BenT <brtubb at pdmusic.org>
  • Date: Sun, 25 Oct 2009 23:25:57 -0500 (EST)

Given:

$Version
"7.0 for Microsoft Windows (32-bit) (January 30, 2009)"

miditofreq[n_Integer] := (440./64) 2^((n + 3)/12);

and

melody[p_Integer, d_Real] :=
 Play[Sin[miditofreq[p] 2 \[Pi] t], {t, 0, d}, SampleRate -> 44100,
  SampleDepth -> 16]

I want to be able to use a list of pitch and duration values for a
melody, and use it like the following, but cannot determine the method
to Map them properly, as in this (non-working) attempt:

Sound[melody[#1, #2] & /@ {{0, 1}, {5, 0.5}, {7, 0.5}, {12, 1}}, {0,
  3}, SoundVolume -> .5]

Can anyone show me the correct (or even a better) way to do so?




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