The tradition of Sunday afternoon musicales continues as the spirited ArtsAhimsa ensemble returns for its ninth season with chamber works from the musical circle of Antonin Dvorak, exploring themes and variations originating from New York, Prague, and Vienna. The richly varied repertoire—ranging from solo instrument to quintet—will include Dvorak’s Humoresque Opus 101 nos. 1 and 7 (the latter arranged for…