Nor were the arts neglected, and in his early years Henry acquired a passionate and lifelong devotion to music. Even as Duke of York he had a band of minstrels apart from those of the King and Prince Arthur;[53] and when he was king his minstrels formed an indispensable part of his retinue, whether he went on progress through his kingdom, or crossed the seas on errands of peace or war.[54] He became an expert performer on the lute, the organ and the harpsichord, and all the cares of State could not divert him from practising on those instruments both day (p. 025) and night. He sent all over England in search of singing men and boys for the chapel royal, and sometimes appropriated choristers from Wolsey's chapel, which he thought better provided than his own.[55] From Venice he enticed to England the organist of St. Mark's, Dionysius Memo, and on occasion Henry and his Court listened four hours at a stretch to Memo's organ recitals.[56] Not only did he take delight in the practice of music by himself and others; he also studied its theory and wrote with the skill of an expert. Vocal and instrumental pieces of his own composition, preserved among the manuscripts at the British Museum,[57] rank among the best productions of the time; and one of his anthems, "O Lorde, the Maker of all thyng," is of the highest order of merit, and still remains a favourite in English cathedrals. [Footnote 53: _Hist. MSS. Comm._, 5th Rep., App., p. 549.] [Footnote 54: _L. and P._, i., 4314.] [Footnote 55: _L. and P._, ii., 410, 4024.] [Footnote 56: _Ven. Cal._, ii., 780; _L. and P._, ii., 2401, 3455.] [Footnote 57: _E.g._, _Add. MS. 31922_.] In April, 1502, at the age of ten, Henry became the heir-apparent to the English throne. He succeeded at once to the dukedom of Cornwall, but again a precedent was set which was followed but yesterday; and ten months were allowed to elapse before he was, on 18th February, 1503, created Prince of Wales and Earl of Chester, the dukedom of York becoming void until a king or an heir apparent should again have a second son.[58] The first sign of his increased importance was his implication in the maze of matrimonial intrigues which formed so large a part of sixteenth-century diplomacy. The last thing kings (p. 026) considered was the domestic felicity of their children; their marriages were pieces in the diplomatic game and sometimes the means by which States were built up. While Duke of York, Henry had been proposed as a husband for Eleanor,[59] daughter of the Archduke Philip; and his sister Mary as the bride of Philip's son Charles, who, as the heir of the houses of Castile and of Aragon, of Burgundy and of Austria, was from the cradle destined to wield the imperial sceptre of Caesar. No further steps were taken at the time, and Prince Arthur's death brought other projects to the front.