@@ -33,11 +33,36 @@ describe Scale do end it "should transpose non-member pitches" do + @scale.transpose(61, -7).should == 49 + @scale.transpose(61, -6).should == 51 + @scale.transpose(61, -5).should == 53 + @scale.transpose(61, -4).should == 54 + @scale.transpose(61, -3).should == 56 + @scale.transpose(61, -2).should == 58 + @scale.transpose(61, -1).should == 60 + @scale.transpose(61, 0).should == 61 @scale.transpose(61, 1).should == 63 @scale.transpose(61, 2).should == 65 @scale.transpose(61, 3).should == 66 @scale.transpose(61, 4).should == 68 @scale.transpose(61, 5).should == 70 @scale.transpose(61, 6).should == 72 + @scale.transpose(61, 7).should == 73 + + @scale.transpose(66, -7).should == 54 + @scale.transpose(66, -6).should == 56 + @scale.transpose(66, -5).should == 58 + @scale.transpose(66, -4).should == 60 + @scale.transpose(66, -3).should == 61 + @scale.transpose(66, -2).should == 63 + @scale.transpose(66, -1).should == 65 + @scale.transpose(66, 0).should == 66 + @scale.transpose(66, 1).should == 68 + @scale.transpose(66, 2).should == 70 + @scale.transpose(66, 3).should == 72 + @scale.transpose(66, 4).should == 73 + @scale.transpose(66, 5).should == 75 + @scale.transpose(66, 6).should == 77 + @scale.transpose(66, 7).should == 78 end end spec/pitch_spec.rb 3ee7eb59f1e6604090620b33eb1d6e44baeefacc Jeremy Voorhis jvoorhis@jeremy-voorhiss-macbook-2.local http://github.com/jvoorhis/music.rb/commit/fc7ceb2c596ff4b644ff6f6819e04eab50c02788 fc7ceb2c596ff4b644ff6f6819e04eab50c02788 2008-08-28T01:49:34-07:00 2008-08-28T01:49:34-07:00 Specs for diatonic transposition of notes with accidentals. A simple algorithm is used: assume the accidental is a sharp. Subtract one half-step, transpose, and replace the halfstep. 4fb5bc7bd973ce6eb9d96786d86ed1b066527872 Jeremy Voorhis jvoorhis@jeremy-voorhiss-macbook-2.local