Friday Evenings: Slack Key Guitar Concerts. Traditional Hawaiian slack key guitar and `ukulele concerts. June 5 – Honoring Raymond Kane; June 12 – Poina `Ole – Never to be Forgotten; June 19 – Hawai`i’s Sunset Music; June 26 – Legends of Slack Key. 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, telling the history of this Hawaiian musical art form. Voted 2014…