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+Sometimes you may wish to indicate tempo changes by showing 2 note
+values with an equals sign between them. For simple cases, this is
+fairly straightforward, but if you want to include beamed notes or a triplet,
+a little more work is required. Another use of this notation is to
+show that the music is to be played in "swing time," as in this example,
+which has two ordinary eight notes on one side of the equals sign,
+and a triplet made up of a quarter and eighth note on the other:
+
+score + // This example assumes "size" is set to 15 + size=15 + beamstyle=4,4 + +music + +// set a location tag +1: [=c] 8c+;a;g;f; + +// set X and Y to where the first note will be placed +define X c.x - 3 @ +define Y c.y + 5 @ + +// print "straight 8ths = triplet quarter plus 8th" + +// print the basic notes and equal sign +print (X, Y) "\(smup4n) \(smup4n) = \(smup4n) \(smup8n)" + +// print the beam between the straight 8th notes +wide line (X + 2.1, Y + 5.5) to (X + 7.2, Y + 5.5) + +// now do the triplet bracket +line (X + 14.7, Y + 7.0) to (X + 17.6, Y + 7.0) // horz left top segment +line (X + 19.4, Y + 7.0) to (X + 22.5, Y + 7.0) // horz right top segment +line (X + 14.7, Y + 7.05) to (X + 14.7, Y + 5.3) // vert left side segment +line (X + 22.5, Y + 7.05) to (X + 22.5, Y + 5.3) // vert right side segment + +// print the 3 in the middle of the bracket +print (X + 17.9, Y + 6.1) "\s(8)\f(TI)3" // the 3 for the triplet + +bar +
+Note that if you want a piece to be played in swing time, +you may also want to set the +swingunit parameter, +which will make the MIDI output use swing time. +
+