Manhattan College of Music professor and Expert double bass player Timothy Cobb teaching a bass lesson from the late 2000s. His bass incorporates a lower C extension which has a metallic "device" with buttons for enjoying the pitches around the extension. Individuals aiming to become Expert musicians, singers, composers, songwriters, https://claytonvjrzi.dreamyblogs.com/27666051/5-tips-about-music-you-can-use-today