| 1. | Medieval Period (1200 - 1450) | | | Introduces those responsible for developing harmony and added instrumentation to Western music. From Heart's Ease Conservatory. www.hearts-ease.org |
| 6. | Middle Ages: 450-1450 | | | Introduction to the Medieval Era from Essentials of Music linked to details on historical themes, musical context, style, and composer biographies. www.essentialsofmusic.com |
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