MCCO Artistic Staff

Louise Gerdelmann

Associate Artistic Director and Conductor

Louise Gerdelmann served as Minister of Music at Gwynedd Square Presbyterian Church, where she conducted a 30-voice adult choir, two children’s choirs, an Orff ensemble, high school ensemble, and an inter-generational concert band. She provided organ music for all services. Louise taught elementary vocal music in North Penn, Pennridge, and Methacton School Districts.

Recently, Louise served as a member of the music staff at Doylestown Presbyterian Church. During her time at Doylestown she conducted the Alleluia Choir, assisted in the direction of the yearly children’s musical, served on faculty for the Summer Music and Arts Camp, and assisted in the planning of the Lessons and Carols Service and Spring concerts.


A graduate of West Chester University, she pursued graduate work at the University of the Arts and Westminster Choir College. During her career, she was named a semi-finalist in the State Teacher of the Year Award program and received a Citation of Excellence Award from the PA State Senate upon her retirement from Methacton.


Currently she teaches private piano and is a substitute organist in many area churches. Louise is a member of the board of directors for Lansdale Community Concerts and serves as their Campaign/Membership Chair. 

Hannah Yu

Collaborative Pianist

Hannah Yu was born to a musical family in S. Korea. Steadfast love of music was deeply planted and nurtured by her father, who was an inspiring pastor, a gifted singer and an advocate of music education.

Finding her passion in studying classical piano music, Hannah received her Bachelor’s Degree in Piano performance in South Korea. Since then, she has performed concerts in  churches, concert halls, and other concert series.

In 1997, Hannah moved to the United states to puruse graduate work in piano pedagogy at California State University, Fullerton. From there, she moved to PA and found an influential teacher, Mr. Harvey Wedeen at Temple University. Under his guidance, Hannah received her Master's degree and completed the Doctoral program in piano performance at Temple. While at Temple, Hannah won the 2004 concerto competition and performed with Temple University Symphony Orchestra.

At Temple she had a great experience teaching secondary piano students as piano instructor & adjunct piano faculty over 7 years. She has been teaching piano privately and at schools over 32 years and currently teaches at Dock Mennonite Academy in Souderton.

As collaborative pianist, Hannah accompanied opera singers for Amici Opera Company in Philadelphia discovering her new passion for operas. She has also accompanied the Temple University Women's Choir, Gwynedd Mercy College Choir and the Franconia-Lancaster Choral Singers.

Hannah has been serving as pianist & organist at churches in South Korea and The United States. Recently at Crescentville UMC in Cheltenham and at Providence Presbyterian Church in Quakertown. She is currently serving as organist at Bethel Hill UMC in Lansdale.


Michael Kemp

Michael’s inherited musical legacy from parents, John and Helen Kemp, took him on a path of voice and viola performance, conducting, and composing and writing. In addition to institutional education at Oklahoma University, Westminster Choir College, and the Royal Conservatory of Music in The Hague, Holland, Michael also studied privately with renowned choral authorities Paul Salamunovich, Philip Brunelle, and Alice Parker, with extensive summer study with Robert Shaw.


Prior to fourteen years of teaching Upper School music at Germantown Academy, PA, Michael served as Director of Music Ministries of Abington Presbyterian Church in Abington, PA, after holding other significant church music positions in Nashville, TN and Arlington, TX. While in Texas, he also founded and conducted the Arlington Choral Society, which critics placed “on the top rung of choral music in the Dallas Metroplex.” During that time he was a choral and church music lecturer at SMU’s Perkins School of Theology.


Recognized for his exceptional ability to build programs, Michael founded and built from ground level many successful ensembles, including four church youth choirs and two high school choirs, two adult community choruses, and one adult community symphony orchestra, in addition to expanding and enhancing existing ensembles. Michael trained choral conductors throughout Jamaica, and his choirs toured internationally to the U.K., Austria, and Poland.


After Michael was diagnosed with ALS in 2019, he retired from conducting the two adult ensembles that he founded, the Academy Chorale and Orchestra (now known as the Montgomery County Chorale and Orchestra), as well as his position as music director at Trinity Presbyterian Church in Berwyn, PA. The last two years of his life were spent composing choral works, writing more books, and finishing his memoirs. Michael passed away in July 2021.