A minor point, but I think the human-readable description of these two codepoints is incorrect.
U+E587 is described as "Schleifer (long mordent)", but a "Schleifer" is a "slide", which is a different type of ornament than a mordent. Just calling it a "Schleifer" is probably sufficient. See "The Interpretation of Early Music", Robert Donington.
U+E589 is described as "Tremblement appuyé", but I think this is really Couperin's version of a "tremblement" (some sort of trill or half-trill). The same symbol is used whether or not the ornament is "appuyé" i.e. whether or not the first note is prolonged. By analogy to U+E588 this could probably be called "Tremblement (Couperin)". See e.g. p.xiv in the Dover edition of Couperin's Complete Keyboard Works https://imslp.org/wiki/Pi%C3%A8ces_de_clavecin_(Couperin%2C_Fran%C3%A7ois)
A minor point, but I think the human-readable description of these two codepoints is incorrect.
U+E587 is described as "Schleifer (long mordent)", but a "Schleifer" is a "slide", which is a different type of ornament than a mordent. Just calling it a "Schleifer" is probably sufficient. See "The Interpretation of Early Music", Robert Donington.
U+E589 is described as "Tremblement appuyé", but I think this is really Couperin's version of a "tremblement" (some sort of trill or half-trill). The same symbol is used whether or not the ornament is "appuyé" i.e. whether or not the first note is prolonged. By analogy to U+E588 this could probably be called "Tremblement (Couperin)". See e.g. p.xiv in the Dover edition of Couperin's Complete Keyboard Works https://imslp.org/wiki/Pi%C3%A8ces_de_clavecin_(Couperin%2C_Fran%C3%A7ois)