Estonian minimalist composer Arvo Pärt has adapted his celebrated work, Summa, for recorder quartet. Originally written for four solo a cappella voices, it is also available in arrangements for string quartet, string orchestra, and choir with organ. Summa bears the distinctive qualities of Pärt's music, masking its great collective complexity with simplicity in each part. This arrangement can be played by soprano/alto 1/alto 2/tenor instruments or tenor/bass 1/bass 2/great bass. Phrasing marks a...