เพิ่มเมื่อ: 2018-02-06 23:40:06.0
 แก้ไขล่าสุด: 2022-10-20 16:50:12.0
		                        	The revised Level 3A Theory Book features a new design for closer integration of key concepts. Students will enjoy new improvisation opportunities, harmonization with primary chords, ear-training and eye-training exercises, and creative written review.
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