Sound.Open
From Xojo Documentation
Method
Opens the FolderItem to be read and returns its contents as a sound object.
Notes
On macOS, the Sound class recognizes sound formats that Core Audio can play.
On Windows WAVs, WMAs, MP3s, and MIDI files can be played, but only WAVs play with DirectSound (this allows individual pan and volume settings for each sound. You can also play multiple sounds simultaneously).
On Linux GStreamer, xine, or libsndfile is used (in that order if available). Nil is returned if the sound can't be read or isn't a sound file at all.
Example
This example loads a sound file called “hello.mp3” from the desktop into a Sound object and plays it.