Progressive Lip Flexibilities for Brass – Bass Clef Edition sbelck February 13, 2022February 13, 2022 Comments $39.00 The latest offering from Lip Slur World Headquarter’s – this is not your Grandfather’s Lip Slur Book. Price is $34 plus $5 Shipping and Handling Progressive Lip Flexibilities for Brass - Bass Clef Edition quantity Add to cart