Hi, Mats, Christian, and all others on the devel list! Long ago when lily 1.1.55 came up, mensural time signature styles old2/4, old6/8alt, old4/8 were added (by Mats & Christian, the changelog says), using a three quarter circle opened to the left side (like the letter "C", but reversed on the x axis). My resources (MGG, Harvard Dictionary of Music, DTV Musikatlas and others) show for (white) mensural notation only a single form with such a reverse "C", namely the "tempus imperfectum cum prolatione minori" typus with brevis as beat; i.e. the reverse "C" equals the vertically slashed "C" (alla breve).
I guess, your resources refer to some notation that was used earlier, maybe franconian ars nova or something alike. Could you check this and/or do have you any bibliographic or WWW references? Thanks in advance, Juergen _______________________________________________ Lilypond-devel mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/lilypond-devel