Sleepy Hollow have sold thousands of copies worldwide of their EP, Goin' Over album, and Legend double-album since their inception in 1999. They are a tough group to label - delving in the realms of Progressive Rock, Acid Rock, and Heavy Metal, with passages more reminiscent of jazz or classical than rock music. The main lineup of Guitar, Bass, Drums, and Keyboards (with band members sharing vocal duties) is often augmented by folk or classical instruments, particularly flute.
Guitarist Matt "the Mole" Schwarz currently focuses on his classical composition as "Matthew h Schwarz" (bringing his heavy metal, prog, and folk influences to string quartets, orchestral music, and such) and performing on the folk harp. He has also performed and recorded with Odin's Other Eye (original rock), Sold Future (progressive metal), Sarabande (acoustic folk), the Castle Rock Orchestra (classical), and other ensembles. His major recordings are on streaming sites, and can also be accessed at https://mattschwarz.bandcamp.com/