Synthesia is an innovative music learning application designed to make playing musical instruments accessible to everyone. The app allows users to start playing immediately, even without the ability to read sheet music. It supports both touchscreen interaction and connection with a digital keyboard, enabling practice using real piano keys. Synthesia's unique features include Melody Practice mode that waits for correct notes, compatibility with lighted keyboards, and options to display traditional sheet music or falling note blocks.

The app offers a comprehensive learning experience by providing finger-position hints for every song and including additional tools like loops, bookmarks, and a built-in metronome. With more than 20 free songs and the option to unlock all 150 included songs through a one-time purchase, Synthesia caters to learners of all levels. This makes it an ideal tool for both beginners who are just starting their musical journey and experienced musicians looking to expand their repertoire.

Synthesia stands out in the Music & Audio category due to its versatile feature set tailored for music learners. One of its key characteristics is the ability to practice using each hand separately or together, allowing users to develop proper technique at their own pace. The app's compatibility with MIDI devices and support for lighted keyboards creates an immersive learning environment that adapts to various learning styles.

Another remarkable feature is the multi-track recorder, which enables users to record their own compositions after unlocking the full version through a one-time purchase. The app also provides lifetime upgrades with this purchase, ensuring users always have access to the latest features. With its combination of visual learning aids, interactive feedback mechanisms, and extensive song library, Synthesia delivers a complete music education solution that evolves with the user's growing skills.