(,input-port? . "input port")
(,integer? . "integer")
(,list? . "list")
+ (,list-or-symbol? . "list or symbol")
(,ly:context? . "context")
(,ly:dimension? . "dimension, in staff space")
(,ly:dir? . "direction")
(,output-port? . "output port")
(,pair? . "pair")
(,procedure? . "procedure")
+ (,real? . "real number")
(,rhythmic-location? . "rhythmic location")
(,scheme? . "any type")
(,string? . "string")
+ (,string-or-pair? . "string or pair")
(,symbol? . "symbol")
(,vector? . "vector")))