“Tool” is almost exclusively used dismissively in dance music criticism, but must every track hold up unlayered, unmixed, or otherwise isolated? Some brilliant club tunes deserve your headphoned attention, but I think we critics sometimes lose sight of where classic moments in dance music occur — on the floor, with a deft selector manning the decks. Toronto’s Stuart Li, known in grimy house music circles as Basic Soul Unit, has become a DJ’s favorite for the very reason many of us might usually click the skip button: save his “Panorama Bar 02 | Part I” A-side, “Things Pass” from this fall, which found Li in veritable anthem mode, they’re unabashedly tracky. While Basic Soul Unit’s recent “Basic Necessity EP” for New Kanada might not contain a DJ’s main event, its contents provide the sort of sinews that hold great sets together, bridging the gap between the energy of one showcase track and the next.