In this column: music blues spots, festivals, Europe, City of Derry Jazz and Big Band Festival (Ir), Dark Season Blues, Longyearbyen (Spitsbergen, N), Jimmy Carpenter and band, Santa Maria Blues, Santa Maria Island (Prt), Robbert Duijf, Callander Jazz and Blues Festival (Scotland), Brunner Blues Festival, Brunn am Gebirge (A), Pewny and Steinbach, Suwalki Blues Festival …