Tuesday Evenings: Slack Key Guitar Concerts.  Traditional Hawaiian slack key guitar and `ukulele concerts. October 2 – Spirit of Slack Key; October 9 – Legends of Slack Key; October 16 – Your Island of Peace; October 23 – Honoring Raymond Kane; October 30 – Aloha Music of Hawai`i. 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…