Vitamin String Quartet, or VSQ, is not a string quartet in the traditional sense.

Rather, VSQ is a series of string quartet projects developed and produced by CMH Label Group, an independent record company based in Los Angeles. The CMH team works with an ever-evolving cast of arrangers, producers, string players and other creatives to bring each project to life.

The series began unofficially in 1999, when CMH began releasing string quartet tribute albums on affiliate Vitamin Records. A few years down the road, this successful album set became known as “Vitamin String Quartet” or "VSQ".

Since its inception, the series has amassed sales of over 3.8 million downloads and 1 million CDs, while maintaining almost half a million monthly listeners on Spotify. It has garnered multiple Billboard chartings and has been regularly featured in numerous hit TV shows.

VSQ has grown to include signature sheet music, video and instructional content, TV appearances, and exclusive live performances. These live performances include a featured performance at The Spotify House at SxSW.