简介:This is an easy-to-use guitar tuner for all ... The Acoustic Guitar Tuner HD应用说明 This is an easy-to-use guitar tuner for all levels from beginner to expert. Press down on each简介:This is an easy-to-use guitar tuner for all ... The Acoustic Guitar Tuner HD 应用说明 This is an easy-to-use guitar tuner for all levels from beginner to expert. Press down on each string to hear it's tone, and tune your guitar accordingly.