Get all three volumes in the Immunim series:
Immunim Benusah Hatefillah I – A Study Text and Workbook for the Jewish Prayer Modes, 2nd edition. A revealing insight into cantorial improvisation in the Jewish modes with musical examples by the master composers.
Immunim II: Hallel Motifs and Modal Patterns, a manual for an authentic chanting of the Hallel psalms.
Immunim III – Sefer Hadrakha, An Annotated Guide and Commentary on the Application of Nusah Hatefillah Beminhag Ashkenaz for the Liturgical Year, 3rd edition, which includes a new section devoted to the Weekday Service.
If you like this you may also be interested in:
Weekday Services in the Ashkenazi Tradition – A complete guide to the authentic cantorial improvisation for the three-weekday services, Shaharit, Minha, and Ma’ariv.