Instrumentation Tutor, developed by Caldera Sound, is a full version Android app that provides an in-depth guide to over 30 orchestral instruments. The app is divided into three sections: Instruments, Reference, and Quiz. The Instruments section provides detailed information on each instrument, including range, transposition, registers, timbre, clefs, tuning, and foreign names. The Reference section offers general knowledge, topic explanations, and quick-reference summaries that are perfect for score reading and transcription. The Quiz section provides a customized learning experience where users can select the instruments, ensembles, and topics they need to memorize. The app includes a comprehensive list of instruments such as Woodwind, Brass, Pitched Percussion, Unpitched Percussion, Plucked Strings, Keyboards, and Bowed Strings.

The app's intuitive interface makes it easy to navigate and find the information you need quickly. The detailed information on each instrument is presented in a clear and concise manner, making it easy to understand even for beginners. The app is perfect for musicians, music students, and anyone interested in learning more about orchestral instruments. Overall, Instrumentation Tutor is an excellent resource for anyone looking to expand their knowledge of orchestral instruments.