Sunday Afternoons:  Slack Key Guitar Concerts.  Traditional Hawaiian slack key guitar and `ukulele concerts.  February 7 – Hanalei Slack Key; February 14 – Legends of Slack Key; February 21 – Whales Homecoming; February 28 – Hawai`i’s Sunset Music.  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 musical art form.  Voted 2014…