Contract between Master Alexander Kid and sir William Myrton, preceptor of the song school of Aberdeen, in which arrangements concerning the choir boys are stipulated. They are to sing 'Ave gloriosa', an anthem of Our Lady, in her honour, immediately after the Lady Mass when it shall be sung etc. Mention is made of the collect of Our Lady known as 'Concede nos' and the 'Beata viscera Marie virginis'.

{. . .} sir Wil3ame maister of {th}e sang schuyll of {th}e cathedrall kyrk of Abirdene and his successoris God wlland sall cause sex bernis of {th}e queir in thair honest surplesis to conueyne at ane alter in {th}e cathedrall kyrk of Auld Aberdene quhilk alter sal be assygyt and schawyne be {th}e said maister Alexander to {th}e said sir Wil3ame tyme and plais congruent euerilk day bayth feryall and festwall perpetwall tymis to cum . And {th}air at ye said alter one {th}air kneys deuotlie sall syng Aue gloriosa ane anteme of our lade in honour and laud of that glorious lade immediatlie eftir ye lade mess quhene {th}e lade mess sal be sounge . and quhene {th}e lade mess is nocht sownge {th}e foirsaid sex bernis in {th}air honest habetis at {th}e first bell of {th}e hie mess anent {th}e foirsaid alter sall syng {th}e said anteme Aue gloriosa one {th}air kneis deuotlie in plaine singynge one ilk feriall day and in prik singynge one ilk haly day quhene it is abstenit fra laboris with ane collat of our lade callyt Concede nos to be sowng be ane of {th}e sex bernis . and ane othir collat pro animabus Alexandri Kyd Agnetis Lyndesay et suarum prolium quhilk beand doune {th}e foirsaid berne {th}at sang {th}e twa collatis alta voce sall sa Beata viscera Marie virginis etc. {. . .}