The size and variety of a music library within an application are crucial factors that determine the breadth of content available to users. For iReal Pro, the extensive music library comprises thousands of songs that can be downloaded directly from forums in just a few simple steps. This vast repository ensures that musicians of all levels have access to a wide array of musical pieces for practice and performance. The app not only allows users to download existing songs but also provides tools to edit these songs or create entirely new compositions using the built-in Editor. Each user-created or edited song can be played back by the app's Player feature, ensuring that personal creations are performed with the same high-quality accompaniment as the pre-existing tracks. Furthermore, iReal Pro places a strong emphasis on copyright authenticity. While the app facilitates sharing and collaboration among users through exporting charts as PDF and MusicXML, it encourages responsible use of copyrighted material. Users are empowered to create multiple editable playlists and share individual charts or whole playlists with fellow iReal Pro users via email and dedicated forums. This ecosystem fosters a respectful approach towards intellectual property while promoting creativity and learning. By providing such a comprehensive and authentic music library, iReal Pro supports musicians in honing their skills and expanding their repertoires responsibly.

Audio quality is paramount when evaluating applications designed for music creation and playback. iReal Pro excels in this domain by offering a range of audio quality options that cater to discerning musicians. The app simulates a realistic-sounding band complete with piano or guitar, bass, and drum accompaniments for any downloaded or user-created chord chart. Users can personalize each style with various sounds including acoustic and electric pianos, Fender Rhodes, acoustic and electric guitars, basses, drums, vibraphone, organ, and more. This diversity in sound selection ensures that musicians can tailor their practice sessions to closely match the desired feel and texture of their performances. Moreover, iReal Pro enables users to record themselves playing or singing along with the accompaniment, capturing their progress with clarity and fidelity. When exporting audio, users have the option to save files in formats such as WAV, AAC, and MIDI, allowing for flexibility in post-production and sharing. These export options preserve the integrity of the original recordings, making them suitable for both casual listening and professional use. The inclusion of advanced practice settings like automatic tempo increase and key transposition further enhances the audio experience by enabling dynamic adjustments during practice sessions. With its robust set of audio features, iReal Pro delivers a versatile and high-quality auditory environment that empowers musicians to refine their craft effectively.