Centertonix is the Cotuit Center for the Arts' new a cappella group. This exciting ensemble includes a variety of ages and vocal talents, and is prepared to entertain you with jazz, show tunes, pop, and doo-wop numbers. Their beautiful sound will be sure to delight.

It all began March 2017 when Steve Stein started directing the group in preparation for their debut on Derby Day on the CCftA main stage. My Old Kentucky Home Good Night was their first song and there has been no turning back. Building repertoire has been their immediate goal but not at the sacrifice of a succinct, soulful, and moving rendition of each of the songs learned.

Rehearsals are Tuesday evenings from 7-9PM. Centertonix is a group of talented a cappella singers whose mission is to entertain with an inspiring sound and to educate audiences about the wide variety of a cappella genres.

Auditions are ongoing with admittance based upon the talent of the auditionee and the specific vocal needs of the group.

Please contact Centertonix artist manager Idell Stein at for information. Centertonix is available to perform at private and public organizations’ gatherings as well as at individual parties.


Upcoming Performance Schedule

The Return of Cape Cod Sings! An A Cappella Festival (with invited guests)
Saturday May 19 at 1PM




Meet the Group

Ben Ayres was in the glee club of Pomfret School where the highlight each year was a performance in Hartford, with several other schools, of such works as Carmina Burana.  Also at Pomfret, Ben was Benny in Guys and Dolls.  Ben sang in the Dartmouth Glee Club during his college years, and with church choirs in Worcester and Pennsylvania.   He was an English and journalism teacher and school librarian before retirement.  He and his wife, Amanda, have two grown sons and a Newfoundland mix who loves to walk them on the beach.  

Frank Callahan has enjoyed singing all his life. He has sung with many theater groups, barbershop and gospel choirs, and chorales including the Good News Gospel Choir, the Coastal Chordsmen, and the Fairfield County Chorale in Connecticut. While a Marist Brother, he even sang Gregorian chant. Frank lives in Brewster and leads group exercise classes at the Barnstable YMCA.

"Teenager In Love" and "Remember Then" were the first songs Stephen Colella sang in his a cappella group while attending high school in Providence. In college, he co-founded the current Williams Octet, and over the years has been a stand-in for The Lemmings. Stephen has performed on the mainstage of CCftA in A Grand Night for Singing, Annie, and Scrooge the Musical. Along with Rebecca Riley, he is excited to co-direct CCftA's March 2018 production of Jesus Christ Superstar. Stephen is very grateful to Steve and Idell Stein for their vision to "do a cappella at Cotuit."

Rachel Corliss is a student at Barnstable High School where she is in Vocal Jazz and Drama Club. Outside of high school she takes vocal lessons, plays piano, sails and performs in various productions including, Pirates of Penzance, Gypsy, Oklahoma, and Sunday In The Park with George here at CCftA. She joined Centertronix because she loves working with other people who enjoy singing. She would like to thank Stephen and Idell Stein for putting this group together.

Kristina Donnellan started her musical path at a very early age, singing canons and harmonizing with her mother and brothers to pass the time during long family car rides. A strong love for singing was born, and she has since sung in numerous choruses, church choirs, duos and ensembles, both in her native country Sweden and in the US. In the late 1990’s, she had the exciting opportunity to perform on tour with the Boston Pops while singing with the William Hall Master Chorale in Southern California. More recent experience includes singing with the Cranberry Shores Chorus and the Cape Cod Conservatory Jazz Ensemble.

Liesl Keller teaches choral music at Mashpee Middle and High School and is working toward her Master's degree in Choral Conducting. In recent years she has enjoyed performing rock music with the band "Second Nature," folk music with Lorre Wyatt, and choral music with several ensembles. This is her first experience singing in a contemporary a cappella group.

Janet Leahy grew up singing in church choirs and chamber music ensembles in high school, and received a vocal scholarship to college. Since moving to Cape Cod, she has been active in several vocal and musical theater groups, including a mid-Cape madrigal group and Eventide Arts. She's also has extensive experience teaching music to children, and singing for the elderly. Most recently, Janet appeared in Scrooge-The Musical here at the CCftA.

Liam Mahony is the volunteer director of “Half Step Down,” the a cappella ensemble of Sturgis Charter Public School East in Hyannis, a group he started with his son four years ago. Earlier in life, he studied classical piano in college, and sang in several choirs, including Boston’s Back Bay Chorale. After a long break from singing, Liam is thrilled to have the opportunity to sing a cappella with Centertonix.

Eve Yvonne Makilya is a Kenyan singer and instrumentalist. She plays classical and jazz piano, guitar, and violin. She has studied at the Kenyan Conservatoire of Music, Berklee College of Music, Salem State University and Cape Conservatory. She is a recording artist and music producer/ arranger. Eve has numerous original compositions available on, iTunes and Amazon. She believes that music is about sharing and bringing people together. She joined Centertonix because Steve and Idell share the same love for music as she does.

Madeline Marasa is from Mashpee, born and raised, getting her musical start at the Quashnet School. She sang in chorus and select choirs in high school, and throughout college including "On A Different Note" an all female a cappella group. Her undergraduate degree is in Theater Arts, Music, and Vocal Performance and her Master’s is in Theater Arts both from Drew University in New Jersey.  Recently she finished her Master’s in Education Applied Behavioral Analysis from Endicott College. Madeline teaches musical theater dance. In her spare time she loves to be in shows across the Cape both on and off the stage. She is so pleased to be singing with an a cappella group again! 

Sarah Martinez has been singing since literally before she could talk. As a child, she performed in beauty pageants and sang as her talent. Despite always wanting to be part of a chorus at school and university, it never quite fit into her schedule. Recently, Sarah has been part of the Do Re Females, Sturgis West's all girls student/teacher a cappella group, and last summer she appeared in CCftA’s production of Oklahoma! She is thrilled to be part of Centertonix!!

Steve Stein, musical director, has nearly 50 years of a cappella group experiences, from his High School barbershop quartet, to singing with and directing the MIT Logarhythms, to singing with the Cape Cod Surftones and the quartet “Cape Cod Chord Conspiracy”. In his years of choral singing, he has sung with the Tanglewood Festival Chorus, the New World Chorale and Chorus Pro Musica. He has also appeared in many musical theater productions, most recently Scrooge and Pirates of Penzance at CCftA.