 Since 1981 it has been in a private collection; previously the tablature was in possession of Curtis Institute of Music in Philadelphia.The tablature consists of seven folios 14.2 x 10.7 cm (earlier scholarship relied on incorrect measurements, 28 x 21 cm (Wolff, Grove)).The full title is "Incipiunt praeludia diversarium notarum secundum modernum modum subtiliter et diligenter collecta cum mensuris diversis hic infra annexis per fratrem Adam Ileborgh Anno Domini 1448 tempore sui rectoriatus in stendall".