The Black Swan (Bert Jansch album) indicated Bert Jansch: guitar and vocals Beth Orton: vocals (3, 4 & 6), guitar (6) Devendra Banhart: vocals (4) Paul Wassif: guitar (5), slide guitar (7), banjo (11) Noah Georgeson: percussion (1), bass (9 & 10) Otto Hauser: drums (3, 5, 6 & 9), percussion (4 & 7) Kevin Barker: lead guitar (6), percussion (4) Helena Espvall: cello (1) Adam Jansch: keyboards (1 & 9) David Roback: slide guitar (3) Richard Good: slide guitar (9) Pete Newsom: drums (10) Maggie Boyle: flute (11) The Black Swan (Bert Jansch album) The Black Swan is the twenty-third and last studio album by
Order-7-3 triangular honeycomb Order-7-3 triangular honeycomb In the geometry of hyperbolic 3-space, the order-7-3 triangular honeycomb (or 3,7,3 honeycomb) is a regular space-filling tessellation (or honeycomb) with Schläfli symbol {3,7,3}. It has three order-7 triangular tiling {3,7} around each edge. All vertices are ultra-ideal (existing beyond the ideal boundary) with infinitely many triangular tilings existing around each vertex in an heptagonal tiling vertex figure. It a part of a sequence of self-dual regular honeycombs: {"p",7,"p"}. It is a part of a sequence of regular honeycombs with order-7 triangular tiling cells: {3,7,"p"}. It isa part of a sequence of regular honeycombs with heptagonal tiling