Hawaiian Slack Key 'Ukulele (DVD) – George Kahumoku
19th Annual ʻUkulele & Slack Key Guitar Festival - Kahilu.TV
Amazon.com: Slide & Slack Key Ukulele: A Collection of Songs, Licks, Tunings and Techniques to Expand the Uke's Musical Horizons: 9781495036132: Sokolow, Fred: Books