"He has done outstanding work with the orchestra [Tonhalle Orchester Zürich] (...) Alexander is a very intelligent and talented musician who shows great promise in his future career."
- David Zinman / Conductor Emeritus - Tonhalle Orchester Zürich

"Magnificent performance of "my lady soul" at the Berlin Academy of Arts! (...) a very promising musical future!"
- Thomas Kessler / Composer

"In addition to his outstanding musicality and conducting skills, Alexander also stands out for his great commitment, reliability and unwavering dedication to his work."
- Hermann Bäumer / General Music Director - Staatstheater Mainz

"Extraordinary musical talent, artistic intelligence and a very consistent work attitude. The performances I witnessed showed him as a sovereign shaper; the musicians he worked with highly appreciated his approach and artistic attitude"
- Prof. Reinhart von Gutzeit / Former President - Mozarteum Salzburg