Jeff Frohner

Musical Director / Piano

Born in Lower Austria, Jeff Frohner worked as a bandleader and keyboardist in various rock and pop formations before completing his studies at the Jazz Conservatory Wiener Neustadt. He has played with artists including Georg Danzer, Andy Baum, The Rounder Girls and Günter Mo Mokesch, has arranged and conducted numerous musicals, led rehearsals and acted as musical director. At the Sommerfestspiele Bruck he was responsible for Anything Goes, Sweeney Todd, Verliebte & Verrückte, Jesus Christ Superstar und Evita. He has toured all over Europe with shows such as 3 Musketiere, Blutsbrüder, Im Weißen Rössl, Der Graf von Monte Christo and Hairspray, and has performed gala evenings and concerts with stars including Pia Douwes, Drew Sarich and Maya Hakvoort. He has also contributed new compositions for Peter Pan, Pinocchio, Wilhelm Tell and Torquato Tasso and written music for film/TV and commercials. Other credits include Xanadu, King Kong, Singing in the Rain, Arthur, Sugar - Some Like It Hot, Fame, Richard O'Brien's Rocky Horror, WE WILL ROCK YOU and the German premiere of BODYGUARD – The Musical. He regularly teaches musical workshops at Performing Arts Vienna and other musical academies in Germany and Switzerland.

Johannes Weik


The Cologne native began playing classical guitar at the age of six. He completed his studies at the Hannover University of Music with the main focus on electric guitar and piano as a minor, graduating with top marks. For many years, he has been composing his own music, especially for his band A kew's tag, with which he has already released three albums, and for his band Son of a Bach, whose videos on YouTube have garnered millions of views. He is frequently on tour with various musicals, including Evita or A Tribute To The Blues Brothers. Since 2017, he has been the guitarist for the Freilichtspiele Schwäbisch Hall, where in 2023, he composed the music for the play Maria Stuart. Through various engagements, he is proficient not only in acoustic and electric guitars but also in banjo, mandolin, ukulele, and additionally cello, which he self-taught in 2019 for Die Dreigroschenoper at the Theater Heilbronn. He is an endorser for Ernie Ball and Takamine Guitars.

David Romero Peralvarez

Reed / Clarinet / Alto Saxophone

A freelance musician, David Romero Peralvarez specialises in clarinet, bass clarinet and tenor saxophone. He currently teaches at various music schools in Valencia. He also works as a musician and is known for his versatility and experience in classical music, jazz and funk. He regularly works with the Berklee College of Music and has recorded several film scores.

Diego Martínez Ordiñana


Diego Martínez hails from Valencia. He began his studies at the Sedajazz Academy, later focusing on jazz at the "Joaquín Rodrigo" Conservatory of Music, where he also completed his degree. As an extremely versatile musician, he feels equally at home in various styles such as swing, Latin jazz, salsa, and more. Currently, he works as a teacher at various academies in Valencia and frequently performs in live music clubs and shows. Additionally, he collaborates with the Berklee College Valencia, Royal Caribbean, and the production of Grease – The Musical in Spain.

Max Eisinger


The native of Munich has been playing the violin since the age of five. Through Klezmer music, he discovered his love for improvisation, eventually leading him to jazz. At the age of eleven, he made his debut at the Munich Philharmonic. Engagements as a soloist, jazz, and orchestral musician (including the Munich Radio Orchestra, Stegreif Orchester, Deutsche Kammerphilharmonie Bremen, Stochelo Rosenberg, Diknu Schneeberger, Mulo Francel) shaped his childhood and youth. Concert tours as a member of the Feuerbach Quartet took him to Europe, Israel, and Mexico. He studied classical violin, jazz, and composition in Nuremberg, Hanover, Warsaw, and Amsterdam. In addition to his teaching position at the Academy for Theater and Dance in Amsterdam, he is a lecturer in chamber music and improvisation at institutions such as the Music Academy Weikersheim, the University of Music, Theatre, and Media in Hanover, and the Bundeswettbewerb "Jugend musiziert." As part of the "Music Swap Lab" of the Deutsche Kammerphilharmonie Bremen, he was awarded the "Opus Klassik" in 2021.

Thorsten Heitzmann


Thorsten Heitzmann studied under Jiggs Whigham at the Hochschule für Musik und Tanz Köln. He was a member of the Bundesjazzorchester and the KölnBigBand and has played in musicals including Chicago, Saturday Night Fever, Hair and Motown - The Music Show. In 2004 he was the trombonist on the Anke Late Night Show with Anke Engelke on SAT.1, where he performed with Nina Hagen, Matt Bianco, Till Brönner and others. With his own band “Bonefunk” he released two CDs and gave concerts at international festivals. Heitzmann has worked with a variety of artists in many different styles: Sarah Connor, NDR Big Band, Albie Donnelly's Supercharge, Marc Marshall, Pee Wee Ellis, African-European Orchestra, Udo Jürgens, Pe Werner, Barbara Schöneberger, Reinhard Mey, Tony Marshall, Jürgen Drews and the Wolfgang Schmidtke Orchester.

Rubén Díaz Cuchillo


Rubén Díaz Cuchillo comes from a family of musicians and began his musical education at an early age. He studied at the Valencia Conservatory, focusing on jazz percussion, and then went on to complete an MA in interpretation and music research. In the last ten years he has worked as a guest musician for national and international artists and participated in the most important jazz festivals in the country, playing in big band formations as well as in quartets and quintets. With the latter, he won a prestigious award in the best jazz album category in 2020.

Robert Lindemann

Double Bass

Robert Lindemann is a professional musician and plays the double bass and electric bass. He has lived in Cologne for more than 20 years. He performs in numerous musicals in Cologne and on tour, including We Will Rock You, Bodyguard, Hairspray and Richard O’Brien’s Rocky Horror Show. He also tours with artists including Mark Medlock and Tom Beck, and works as a songwriter and producer. He has performed in many different festivals including Rock am Ring and Rock im Park, as well as in the Schalke Arena, Köln Arena, various theatres and opera houses and in countless clubs.

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