Vals No.3, Op.8 by Barrios – Free Sheet Music Vals No.3 (Op.8) by Agustin Barrios (1885-1944). Free PDF Sheet Music arranged for classical guitar. Level: Advanced. Source: Creative common license (CC BY-NC 4.0) from Classical Guitar School. Vals No.3 (Op.8) by Barrios – Free PDF Sheet Music Video Link Vals No.3, Op.8 by Barrios – Video Barrios TAB Book Barrios in Tablature: Volume 1 – Numerous works in this great book. Same editor as the famous complete editions.Complete Barrios Vol. 1 (Notation)Complete Barrios Vol.2 (Notation) Enjoy free music links? Join our Newsletter for updates or support the site.