In 1968 Warren Royal Dawson bequeathed to the British Museum a collection of manuscripts mainly relating to Egyptology and the occult sciences but including some miscellaneous volumes. The unpromising title on the spine of one of these, ‘Aston and sundry MSS. ‘, now numbered Add. MS. 56279, concealed the remains of a volume of some interest for the history of Jacobean music and drama. In a note on a front flyleaf (f. 1) Dawson recorded that he bought the volume (number 22 in his numeration), together with his MS. 19, at a Sotheby sale in 1931. The volume was in poor condition and he had it pulled and rebound with blank interleaves; the foliation entered by Dawson on the latter will serve in this article to identify the several items contained in the volume until it can receive the further attention from the British Museum Bindery which it now requires.