David Brownstein (aka DJ Trotsky) is a Los Angeles, CA based songwriter, producer and mixer creating emotionally authentic, harmonically rich pop, electronic, rock and alternative music.  
Working in New York, San Francisco and Los Angeles he has produced and written rock, pop, funk, rap/hip-hop, country, dance and metal and is currently co-writing, collaborating and developing a new generation of popular artists.  
His current projects combine electronic sounds, foundations and textures with organic instruments, exceptional vocalists, strong melodies and positive lyrics.  And always a great bass line.  
A Grammy nominated music-video producer and award-winning filmmaker he has traveled the world as a leadership and business coach for the Entertainment Industry.