Sunday Afternoons:  Slack Key Guitar Concerts.  Traditional Hawaiian slack key guitar and `ukulele concerts.  November 3 – Ohana Slack Key Guitar & Ukulele Concert; November 10 – Heart of Slack Key; November 17 – Kaua`i Slack Key; November 24 – Honoring Raymond Kane.  Tickets: $20 ($15 keiki/seniors).  The concerts are nahenahe - soft and sweet.  Slack key guitar and `ukulele in the real old style.  All traditional music with songs and stories of the islands, telling the history of this Hawaiian…