David Grubbs assembled this lovingly subjective selection of world-beating duos by leaning heavily on longtime friends and creative foils including Tony Conrad, Jim O’Rourke, Loren Connors, Bonnie ‘Prince’ Billy, Jan St. Werner, Wendy Eisenberg, Taku Unami, Andrea Belfi, Kramer, Jules Reidy, and Cleek Schrey. Grubbs’s album Whistle from Above is a solo record, with the caveat that few solo records really mean going it alone.