Opus Great vs 1 to A

Opus Great is a beautifully simple library for PDF sheet music — built for musicians who want their scores organized, searchable, and ready to play. Whether you study piano, violin, or any other instrument, Opus Great turns your scattered PDF downloads into a clean library that syncs across all your devices through your private iCloud. KEY FEATURES • Organize with Ease Sort scores by Inbox, Favorites, and custom collections. Build music books for recitals, exams, or daily practice. • Quick Search Powerful search and filters help you find any score by title or composer in seconds. • Favorites Star the pieces you play most often for one-tap access from the Discover tab. • Book Management Create curated collections (e.g. "Recital 2026" or "Bach Inventions") and arrange scores in any order. • Personalized Settings Light or dark theme, English or Chinese interface, and storage usage at a glance. • iCloud Sync Your library lives in your private iCloud account — no logins, no servers, no subscriptions. Open the same score on iPhone or iPad without lifting a finger. DESIGNED FOR PRACTICE AND PERFORMANCE • Smart PDF reader with three layouts: continuous scroll, single page, and two-up • Full-screen performance mode hides everything except the music • Brightness overlay for late-night practice • Reading progress remembered automatically — pick up where you left off • Import multiple PDFs at once from Files, or scan paper scores with your camera PRIVATE BY DESIGN Opus Great does not collect, track, or upload your data. Everything lives on your device and your iCloud account. There is no account to create, no analytics, no ads. FREE TO TRY, ONE-TIME UPGRADE Download and use Opus Great free with up to 10 scores. Unlock unlimited scores and all future updates with a single $9.99 lifetime upgrade. No subscriptions, no recurring charges. — — For pianists, violinists, and every musician who has been waiting for an "Apple Books for sheet music" — Opus Great is here.

Ever wonder how people play music with a number? 1 to A makes sense of the number system and shows you the translation for all major keys. Simply select a key and see the chord that corresponds! Don't know how to play that chord? We got you just click on the number and view the fingering!