Friday Evenings: Slack Key Guitar Concerts. Traditional Hawaiian slack key guitar and `ukulele concerts. August 1 – Spirit of Slack Key Guitar & Ukulele; August 8 – From Mountain to Sea; August 15 – Dreams Come True; August 22 – Tour of the Islands; August 29 – Hanalei Slack Key Guitar & Ukulele. Free gift drawing. Tickets: $20 ($15 keiki/seniors). Slack key guitar and `ukulele in the real old style.  All traditional music with songs and stories of the islands,…