Hi, Good work on the rip! It sounds great! However, the Select theme, despite its repetitive nature and how little of it is heard in the game, actually extends far beyond what's been looped here with an extra lead section and drum break. The issue is that several incomplete versions of it is stored in the game's sound test and you have to cycle through a lot of the sound effects to reach the correct version.
For reference, here is my upload of the soundtrack on YouTube with the complete song:
https://youtu.be/KMrbUi4Aq1o?si=CQK2Hm_aXwaIJzKQ&t=25
Again, you've done excellent work to rip this very unique soundtrack. There's little else on the system that sounds like this game does (which is a shame, personally speaking).