About Irregular Pearl

Irregular Pearl is a non-profit platform that organizes classical music knowledge around the piece as the atomic unit. Every musical work gets a living page with structured metadata, edition comparisons, recordings, and community discussion from working musicians.

The name comes from the etymology of baroque — from the Portuguese barroco, meaning an irregularly shaped pearl. Like the era that gave us Bach, Vivaldi, and Handel, we believe the most interesting things are rarely perfectly round.

What we do

• Catalog. 103 pieces across 18 instrument families, from Baroque to 20th Century. Each piece has a title, composer, catalog number, era, form, difficulty, and a written description.
• Compare. 227+ editions with publisher, editor, year, and editorial notes. Side-by-side comparison so you can pick the right score for your level and taste.
• Discuss. Every piece has a threaded discussion where musicians share fingerings, tempos, interpretive choices, and practice strategies.
• Track. Log your practice, lessons, performances, and listening. See what the community is working on.

For musicians, teachers, and students

Whether you're a conservatory student picking your next recital piece, a teacher building a syllabus, or a returning adult player looking for the right edition of a Chopin nocturne — Irregular Pearl gives you the information that used to require asking a dozen people.

Open and free

Irregular Pearl is a non-profit. All piece data, edition information, and community discussion are free to access. We link to IMSLP for public domain scores, YouTube for recordings, and Wikipedia for background.