Mary Tidwell has been Instructor of music theory and ear-training at Trinity Valley Community College in Athens, Texas, since the fall of 2011. She served as Professor and Chair of both the Music Department and Fine Arts Division at Lon Morris College in Jacksonville, Texas from 1993-2011. Prior to that time, she taught at Indiana-Purdue University in Fort Wayne, Indiana and at Baylor University in Waco, Texas.

Ms. Tidwell obtained both the Bachelor of Music Degree in Piano Performance (magna cum laude) and Master of Music Degree in Piano Performance and Literature from Baylor University. Her teachers have included Ruth Burr, Michael Ard, Roger Keyes, Jane Abbott-Kirk, and Sheila Paige.