作者: EmmaNewman,
期刊: Electronics Education (IET Available online 1994) 卷期: Volume 1994, issue 3
页码: 20-21
年代: 1994
DOI:10.1049/ee.1994.0076
出版商: IEE
数据来源: IET
摘要:
Sound-based metronomes aren't particularly useful if you are deaf—or, if you play the piano loudly for that matter! That's when it becomes necessary to see the light.
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