Friday Afternoons: Slack Key Guitar Concerts.  Traditional Hawaiian slack key guitar and `ukulele concerts. June 2 – Legends of Slack Key Guitar & `Ukulele; June 9 – Honoring Keli`i Mawae of Moloka`i; June 16 – Heart of Slack Key Guitar & `Ukulele; June 23 – Mountain to Sea; June 30 – Tour of the Islands.  Free gift drawing.  Award winning traditional Hawaiian slack key guitar ad ukulele concerts featuring songs and stories telling its history.  Tickets $25 general admission, $20…