Benefits of graduating on time/becoming a teacher in Texas?

I will graduate next may with a B.A. in Music with Teacher Certification, and I have a few questions if anyone can help! I will have finished my degree in 4 years (it is a 5 year degree btw), and upon graduation I intend to get a job in a public school. My question is, does the state of Texas or any other organization that you know of give any kind of loan repayment/tuition reimbursement/anything like that to students who graduate on time and pursue a career in teaching? Any information would be very much appreciated!