Here is my version of "Maple Leaf Rag" for the TI-99/4A. You can download it in the files section. It runs in extended basic. You will have to unzip it first on your PC.

If you have a TI-99/4a with TIPI installed and online you can run it directly on your TI by going into Extended Basic and entering the following. CASE is important!

RUN "PI.https://retro-ti994a.com/downloads/MLRV104C-X"

Here is another version with a splash screen created with Magellan: