The Sign of 4 Design

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  Vocal Trainer - Start Singing 2.13

  The Sign of 4 Design - Freeware -

  Are you considering pursuing a singing journey from scratch? Without much prior experience in the realm of singing? Then, the Vocal Starter Trainer by Victor Baumwolle could be the tool you are seeking. 更多资料...
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  Vocal Trainer - Singing Better 3.14

  The Sign of 4 Design - Freeware -

  Stop hesitating to sing off-key! If you are dedicated to enhancing your vocal abilities, Victor Baumwolle's Vocal Intonation Trainer Lite is designed for you. This application serves as a tool to refine your pitch accuracy. 更多资料...
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  Note Recognizer 5.2

  The Sign of 4 Design - Freeware -

  The Note Recognizer is a must-have tool for musicians deeply engaged in active music production. This application is not an ordinary game, as it provides advanced features for pitch analysis. 更多资料...