Red Level. Composed by Anthony Marks, Catherine Duffy, and Leah Perona-Wright. This edition: Singer’s Workbook edition. Royal School of Church Music. Sacred. Book. 48 pages. GIA Publications #6393. Published by GIA Publications (GI.G-6393).
Light Blue Level. Composed by Anthony Marks and Catherine Duffy. This edition: Singer’s Workbook edition. Royal School of Church Music. Sacred. Book. 48 pages. GIA Publications #6391. Published by GIA Publications (GI.G-6391).
Dark Blue Level. Composed by Anthony Marks, Catherine Duffy, and Leah Perona-Wright. This edition: Singer’s Workbook edition. Royal School of Church Music. Sacred. Book. 48 pages. GIA Publications #6392. Published by GIA Publications (GI.G-6392).