Locke, Matthew
12 Duos for two Basse Violls
GB-Lbl Add.17801 (autograph)
Bärenreiter - Hortus Musicus; Musica Britannica XXXI; Güntersberg
In the autograph, the pieces are simply numbered from 1 to 12; but in the Musica Britannica edition, they are combined into two suites (D major/D minor and C major/C minor ).
http://vdgs.org.uk/thematic/Lo.pdf (Locke-6)