Sunday Afternoons: Slack Key Guitar Concerts.  Traditional Hawaiian slack key guitar and `ukulele concerts.  June 3 – Gift of the Ancestors; June 10 – For the Birds; June 17 – `Ohana Slack Key; June 24 – Spirit of Slack Key.  Award winning traditional Hawaiian slack key guitar and ukulele concerts featuring songs and stories telling its history.  Tickets $25 general admission, $20 Ages 13-19 & over 50, keiki under 5 free. Free gift drawing.  A portion of the proceeds supports…