About Us

Tizmoret is Queens College Hillel’s professional Jewish a cappella group. Tizmoret draws singers from colleges throughout the New York City area and has taken Jewish collegiate a cappella to the next level, performing classic Jewish melodies, American pop music and contemporary Israeli tunes. They have produced seven CDs, as well as two EPs. Tizmoret has performed for college campuses, countless b’nei-mitzvah and synagogues, and various music festivals across the Eastern United States. They have performed in Merkin Hall and Symphony Space, won the 5th annual Long Island College A Cappella Challenge in 2010, annually tour the east coast and beyond, performed in Italy at a New Year’s party, performed at the annual White House Hanukkah party in 2014, won the first annual Philadelphia Jewish Collegiate A Cappella Competition in 2017, won Kol HaOlam (the National Jewish Collegiate A Cappella Competition) in 2011, 2012, and 2015, and competed in the 2017 International Championship of Collegiate A Cappella (ICCA)!

Director: Daniel Henkin

For over twenty five years, Daniel Henkin has conducted Jewish and secular choirs for children, teenagers, and adults, and has produced more than a dozen albums of Jewish and secular choral music. He has directed ensembles at Lincoln Center’s Avery Fisher and Merkin Halls. As an arranger and conductor, Daniel has helped pioneer the contemporary Jewish a cappella movement today. His choral arrangements are performed by ensembles throughout North America and Israel, and have shaped the sound and style of this generation’s Jewish a cappella choirs. Daniel Henkin received his BA in Music and Philosophy from Columbia University, and his Masters degree in Music Composition from Indiana University’s School of Music. Daniel is Director of Music at the Ramaz Upper School in Manhattan. He has taught music at the Solomon Schechter Day School of Essex and Union and at the Yeshivah of Flatbush. He was also one of three recipients of the Covenant Award in 2016!

President: Thalia Sharon

Thalia, a senior at NYU studying Communications, not only knows her sheet music by heart but every line from every episode of Friends as well. Thalia’s hobbies include pretending to not sing in the shower, keeping up with the latest celeb news, and reminding people that her name in fact is spelled with an “H”. A seasoned soprano and group president, it’s probably safe to assume that Thalia is at 16 Handles as you are reading this. To find out her favorite flavor of froyo, you’ll need to ask her in person at one of Tizmoret’s concerts.

Assistant Music Director: Aaron Kohl

Aaron is BACK! He was in Tizmoret for a short time just a few years ago, but he went away to Berklee School of Music in Boston, MA. After he transferred to Yeshiva University he returned to the group to grace us with his presence and angelic voice. He is excited to be taking on the role of assistant music director, working closely with Daniel as well as Thalia.


Ariella Mammon

Ariella Mammon is from Toronto, Canada and is in her second year at Stern College for Women. She began singing at the age of four and has not stopped since! She also loves swimming. She’s excited to begin her journey with Tizmoret and can’t wait to see you at the next concert!

Rebecca Robin

Rebecca Robin is a Junior at Stern College with a major in Public Relations. Rebecca has been a singing powerhouse for years and even sang for multiple tracks that her brother produced! Besides singing, she enjoys writing and kickboxing. Beware – she can take you out! She is excited for her second year as a Tiz soprano!


Carly Friedman

Carly Friedman is a senior at Stern College with a major in biology and a minor in music.  As a past member of many choirs and a cappella groups, she is super excited to be starting this new chapter in her life with Tizmoret!  When she’s not singing, you can find her watching basketball and posting in the Cool Dog Group on facebook (yes, it’s a thing).

Esti Mellul

Esti Mellul recently received her MA in Communication and Information Studies from Rutgers University. Esti is currently producing a solo album as well as working in the Jewish retail world, meeting people who will soon say “I knew her when!” She is an alumnus of Kol Halayla (Rutgers University Premier Jewish A Cappella Group) and is excited to continue her a cappella career in Tizmoret for the second year!

Nina Sivan

Nina Sivan is excited to be performing after a year getting to know her way around New York City. Born in Palo Alto and raised in Brookline, MA, Nina is a sophomore at The New School studying Culture and Media with a minor in photography and communication design.  Her hobbies include standing on line at backstage doors and knowing all the words to Waitress (dialogue included). At age 4, she first sang in the children’s opera production of Hansel and Gretel, continuing through high school where she took part in musical theater and was a vocalist for the school’s Jazz band. Although Nina has been singing for years, this is her first time in an a cappella group and she couldn’t be more stoked to be a part of Tizmoret!

Tamara Heller

Tamara Heller is a junior at Queens College. When she’s not singing, you may find her working on her newest art project (she designed our album “Score” if that’s any indication). She is excited to be with Tizmoret for another year!


Azriel Zylberberg

Azriel Zylberberg is a junior in Brooklyn College, but is originally, and is at heart, a Queens College student. He is studying mechanical engineering and loves his fellow Tizmoret members!

Bentzion Goldman

Bentzion Goldman is a student at Parsons School of Design. He is incredibly skilled in the ways of design, having redesigned the Tizmoret logo, creating promotional material, and more! He is excited for his second year with Tizmoret!

Yoni Kastner

Yoni Kastner is a freshman in Macaulay Honors at Queens College, potentially majoring in mathematics and neuroscience. But who knows? He certainly doesn’t. It’s his first time in an a cappella group and he’s happy to be a part of the team!


Cory Hecht

Cory Hecht (Former President '15-'17/Bass/Vocal Perussion) is a senior studying vocal music at the Aaron Copland School of Music at Queens College. Prior to Tizmoret, he was a member of the B Sharps and Chock Full of Notes, both at Plainview Old-Bethpage JFKHS, and he founded and was the president of Stay Tuned at SUNY Potsdam. Some of his achievements outside of Tizmoret include singing for the Israeli consul by invitation for Israel’s 60th birthday, performing at Carnegie Hall, creating/maintaining multiple websites (including this one), performing with Josh Groban at Nikon Jones Beach Theater and PNC Arts Center in New Jersey, and competing in the 2016 American Beatbox Championships. Cory is a member of CASA (Contemporary A Cappella Society of America), AEA (A cappella Educators Association), ACDA (American Choral Directors Association), and NAfME (National Association for Music Educators). For more information please visit www.CoryHecht.com.

Jeremy Gruen

Jeremy Gruen is a sophomore at Baruch College studying Music Business. He’s one of the youngest arrangers ever for the group, one of his works being used for the ICCA Quarterfinal Competition (Don’t You Wanna Stay). He’s looking forward to new arrangements, new members, and a dope new year!

Yoni Gelfand

Yoni Gelfand is a junior at Baruch College. He auditioned for Tizmoret, not realizing how drastically it would alter his life once accepted. He does still sing in the shower, though.