[opusfish]

Yes you can repeat in a loop quite easily.  You can use a GOTO to make an infinite loop in BASIC.

See here for speech synthesizer programming info:  https://www.ninerpedia.org/wiki/Speech

I recall using CALL SAY.

That's so great! Thank you for replying!
I guess the main thing will be to pick up the TI from my parents' house and try playing with it. I may come back with more questions after I've tried to teach myself as much as I can on my own.