Lisa Tulk studied saxophone and piano at the Royal Northern College of Music. Lisa enjoys a rich varied career as a performer, composer, educator and choir director. She has performed at some of the UK's leading concert venues, broadcast several times on BBC Radio 2 & 3 and more recently performed her own compositions at the Manchester Jazz Festival. She performs regularly as saxophonist and vocalist and is the creator of Voice to Voice choir of which there are now three based in the north west of England.

Voice to Voice was created in 2014 with one choir in Cheshire. It was since grown into three throughout the northwest of England. Voice to Voice is a lively, contemporary choir. Now in its fourth year, it has grown into more than 150 members. Performances include singing at BBC North West , Manchester Central (Gmex) for the European Science Open Forum, The Ideal Home Show Exhibition, at the Victoria Hall Bolton with Wingates brass band and soon to be appearing on Christmas Eve on ITV as part of Manchester Carols at Christmas. Voice to Voice has appeared twice with Swansea City Opera in their performances of Faust and La Boheme. In March 2018 they are delighted to have been invited to sing in New York at the Lincoln Centre with acappella guru Deke Sharon.

Rebecca is a professional vocalist and certified teacher of the Institute for Vocal Advancement (IVA). She has over 10 years of experience teaching singers of all abilities and ages, from children to professional musicians and record label signed artists. As an Advanced Instructor at IVA, she is responsible for training and mentoring other voice teachers in vocal technique, song application and pedagogy. Rebecca has students from across Canada and the USA, as well as Australia, Ireland, the UK, France, Switzerland, Poland, Belgium, Spain, Bulgaria, Japan, Korea, Singapore, Columbia, Uruguay, Brazil and more. She teaches private lessons and workshops internationally. ​ For 7 years, Rebecca directed a live music and industry networking event, The MIX, which showcased hundreds local Vancouver musicians and bands to Canadian music industry professionals. In 2016, Rebecca was nominated for a YWCA Women of Distinction Award in the category of Arts and Culture, for her work as a singer, voice teacher and volunteer in the Vancouver music community.

YVR POP CHOIR is a choir of 60 singers that formed in 2016. We sing pop, indie and R&B songs to benefit the welfare of animals. 100% of the proceeds from our shows are donated to local animal charities. In our very first year as a choir, we raised over ,500 for local animal rescues in the Lower Mainland of Vancouver, Canada!

Jacqueline Curtis comes from a musical performance family and married into another. A life-long entrepreneur, with years of theatre experience both as an actor and director, she employed improvisational techniques, with fellow professional performers, to educate and entertain blue chip business clients. Her most recent endeavor is My Pop Choir created to offer an environment for non-pros who love to sing but haven't experience or training. Jacqueline believes that singing should be accessible to everyone and that the community it creates gives members confidence, energy and a profound sense of joy.

Samarth is a singer from Bengaluru and he has been singing in No Treble since its inception. Apart from A Capella, he also dabbles in production and songwriting.

No Treble is an India A Capella team who are known for their versions of popular Indian and Western music, and the way they combine them in a unique way which defines their sound.

Maximilian Lörzer, born 1988, began early with lessons in playing the flute and the clarinet, the piano followed. 2005 he joined his school’s choir and discovered his love for choral work. In the following he joined the Philharmonic Choir Jena and the Chamber Choir of the Hochschule für Musik Franz Liszt Weimar. In 2009 he began his studies at Hochschule für Musik Franz Liszt Weimar to become a music teacher. He finished his studies in 2015. In 2011 he founded the Psycho Choir and since then he holds the musical and the legal direction of the choir and the association.

The Psycho-Chor der FSU Jena is a choir of about 70 young people and was founded in April 2011 at the institute for psychology at Friedrich-Schiller-University Jena. Every semester the choir rehearses a new program of Acappella-Pop that is presented at several concerts, which bring together more than 1.000 enthusiastic concert-goers. Since the beginning the choir is supported by students of Weimar's Hochschule für Musik Franz Liszt in voice training and sectional rehearsals. In January 2015 the Psycho-Choir produced its first CD. In October 2017 the choir went to Amiens (France) und will go to Krakow (Poland) in October 2018.

Keith Harris has been director of the Westchester Chordsmen for the past 10 years, taking them to new levels of singing excellence (38th among the 650 choruses in the Barbershop Harmony Society), utilizing his education and experience from undergraduate and masters degrees in Voice Performance from Lawrence University in Wisconsin and University of Washington. In addition, he is captivating audiences with his operatic baritone performances on both opera and concert stages including the New York City Opera, the Metropolitan Opera at Lincoln Center and numerous appearances around the U.S., England and Europe.

The Westchester Chordsmen Chorus is a 501(C)3 not-for-profit performing arts group. Its mission is to spread the joy and fun of singing around to the community, the country and the world. The Chordsmen’s musical repertoire extends beyond its barbershop-style roots to Broadway show-tunes, doo-wop, traditional, gospel and contemporary songs arranged in four-part a cappella harmony for tenor, lead, baritone and bass singers. Our 65 members come from Westchester and surrounding counties in New York, Connecticut, New York City, and Long Island. Interested singers of any age are welcome any Monday night. For the rehearsal schedule and alternate locations, visit www.chordsmen.org.

Katie Shields has directed the Northlake Academy of Music Choirs for the past 9 years where she also provides private instruction in voice and piano, as well as audition preparation. She holds a Bachelor of Music Education with an emphasis on vocal music from Southeastern Louisiana University and is actively involved with the American Choral Directors Association through which many of her students have participated in honor choirs on the state, regional and national level. Other merits include director, music director, and costume director for musical theater productions at various schools, theaters, and institutions over the past 18 years.

The Northlake Academy of Music Advanced Choir, under the direction of Katie Shields, is made up of singers ages 12-18 who are of advanced vocal and musical skill. Many choir members have participated in vocal competitions and auditioned honor choirs and workshops throughout the country. Located in Mandeville, Louisiana, this choir performs at various venues and events in the community and surrounding areas including Celebration in the Oaks at New Orleans City Park and singing the National Anthem for the New Orleans Baby Cakes.