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Leia Browning

Director of Choirs

Leia Browning began teaching in 2004. After coming to Rockwall HS in 2012, she has become increasingly excited to work in the world of a cappella. She is the Education Coordinator for the National A Cappella Convention, and the Repertoire and Resources Chair for Contemporary / Commercial Music for the Southwest American Choral Directors Association.


Walk the Line began competing in 2016 and became National Finalists in 2017. In 2022, they returned to the Finals stage and were awarded 2nd Place. In addition to competition, Walk the Line has produced 2 albums, was featured on BOHSA 2019 and 2020, Voices Only 2019, and has been nominated for 8 CARA awards. They won Best High School EP in 2022.


Leia is a member of TMEA and TCDA and enjoys working with groups from all across Texas. She attended TVC’s NextLevel Direct seminar in the summer of 2018, and often teaches workshops and masterclasses around the DFW area.

Parker Lessmann

Associate Director of Choirs

Parker Lessmann began as the associate director of Rockwall High School choir in 2019, where he directs the school's all female a cappella ensemble, Sting. The 2021 ICHSA national finalists released their debut album, Coronation, in 2021, and are consistently the top-performing all-treble group in the nation.


Prior to RHS, he served as associate choral director at McKinney High School from 2017-2019, following his time directing at the Austin Academy for Excellence in Garland ISD. Under his direction, his choirs have exclusively earned Sweepstakes ratings at UIL Concert & Sightreading, and superior ratings at multiple choral festivals, including Best in Class.


Mr. Lessmann is a graduate of Texas A&M University-Commerce, where he earned his Masters of Education and Texas Christian University, where he earned his Bachelor of Music Education. During his time at TCU, he participated in various ensembles, including the TCU Concert Chorale, University Singers, Jazz Ensemble, and the Frog Corps men's chorus. He has previously served as a vocalist in the Dallas Bach Society as well as the Verdigris Ensemble. Currently, he serves as a choral section leader at St. Andrew United Methodist Church of Plano, and is a member of the Texas Choral Directors Association and Texas Music Educators Association.