The best software to play my mods is probably OpenMPT. MilkyTracker works fine too for the XM. And Schism for the IT. Don't try to use MilkyTracker to play IT it is going to perform a very poor conversion. Also, Linux users, be aware that the excellent OpenMPT works perfectly under wine.
I'm sorry to announce that I have stopped composing with OpenMPT and therefore uploading here. I am actually developing my own tracker which is going to be integrated to Ardour. Currently it is a fork of the master branch, which you can find here https://github.com/ngeiswei/ardour/tree/tracker-editor-wip, as well as some instructions https://github.com/ngeiswei/ardour/blob/tracker-editor-wip/gtk2_ardour/tracker/README.md. If you are a programmer and you would like to help, please join the effort, you would be so incredibly welcome.
You may find my more recent music here:
https://soundcloud.com/asublin
All songs made since 2021 are actually made with my new tracker.