เพิ่มเมื่อ: 2018-02-06 23:39:27.0
 แก้ไขล่าสุด: 2018-11-08 16:48:05.0
		                        	Accelerated Theory Book 2 is divided into fifteen units, correlating with the fifteen units of Lesson Book 2. Each unit provides valuable reinforcement of basic theory concepts through writing, sightreading, and ear-training activities.
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