Exception: Not implemented: play

[oliver...@gmail.com]

I'm trying to play a test, but I get an exception:

ghci> import Music.Prelude
ghci> let example = c |> d |> e
ghci> play $ asScore $ example
*** Exception: Not implemented: play

What do I need to set up to get playing to work?

[Hans Höglund (2)]

Hi Oliver,

Sorry about the missing function. This used to be implemented using Haskell MIDI-bindings which did not work well on all platforms.

I recommend installing Timidity and defining your own play as follows:

let play x = do

  writeMidi "test.mid" $ asScore x

  System.Process.system "timidity test.mid"

Good luck,

Hans