Tuesday Evenings:  Slack Key Guitar Concerts.  Traditional Hawaiian slack key guitar and `ukulele concerts. May 7 – Hanalei Slack Key; May 14 – Honoring Keli`i Mawae of Molokai; May 21 –Heart of Slack Key; May 28 – Poina `Ole – Never to be Forgotten. Free gift drawing.  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.  Proceeds support…