PoochyB’s Wordstock

Elderly Instruments is a musical instrument retailer in Lansing, Michigan, with a national reputation as a seller, repair shop, and locus for folk music.

lo·cus
n.   pl. lo·ci (-sī’, -kē, -kī’)

1. A locality; a place.
2. A center or focus of great activity or intense concentration: “the cunning exploitation of loci of power; the insulation from normal American society” (Clifton Fadiman).
3. Mathematics The set or configuration of all points whose coordinates satisfy a single equation or one or more algebraic conditions.
4. The position that a given gene occupies on a chromosome.