! 5-13e.de.ton.(7em.div.13.scl)
!
5/13 of tone <=> 76.9 cents <=> 1,0454344196064945509930909616044 (ratio)
 13
!
 76.92308
 153.84615
 230.76923
 307.69231
 384.61538
 461.53846
 538.46154
 615.38462
 692.30769
 769.23077
 846.15385
 923.07692
 1000.00000