Wednesday Evenings:  Slack Key Guitar Concerts. Traditional Hawaiian slack key guitar and `ukulele concerts.  April 3 – Hanalei Slack Key; April 10 – Honoring Keli`i Mawae of Molokai; April 17 – Heart of Slack Key; April 24 – Poine `Ole – Never to be Forgotten. 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. A portion of the…