From previous posts, I have been working long and hard on thie UDF, but it has turned out a success. Unlike people who do not want to share UDF's [Phillip Benefall], I will be completely willing to give this UDF for download. See the example in the UDF file, actually, you can just run the UDF and listen to the music... Eynstyne MIDI UDF!!! - Midiudf.au3 (Stream functions still need work...) If there are any problems with the UDF, PM me THX Enjoy!