The private archive for
your record collection.

Catalog what you own and shape your collection as it changes.

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  • LP
  • CD
  • Cassette
  • 45

Plus: 78 RPM, 8-track, Reel-to-reel, and more.

Know what you own wherever you are.

You remember the stuff you own. Then you're in the record store and you're not so sure. Do I already own this? Which Copy has the cleaner sleeve? Where did this release come from? Should I take a chance and buy it?

Sides gives you a reliable account of what you own wherever you are.

Capture now. Curate when you have time.

Mobile is where you capture and read. Desktop is where you curate.

You don't have to know release details to add a title to Sides. Add just the basics, or the full release details, or anything in between. Sides does not force you into choices you don't need to make.

Sides mobile New title form with Rubber Soul entered as the title and 1965 as the original release year.

At the record

Make a quick capture.

Add titles quickly on mobile for the new stack of releases you got, or when adding your collection all at once. You don't need all the data now. You can add that later.

Sides desktop Title detail for Rubber Soul with artwork, edit controls, and Copy release information.

At the desk

Refine the data.

Use the larger desktop window to add the details, and Sides provides a rich, extensible set of data points for all categories and genres, including the tough ones.

Sides mobile Titles search for Rubber Soul with its matching title card.

Wherever you listen

Look up with confidence.

Search quickly for a given title or titles. Know what you have, and find it using search and a complete set of filters.

Why Sides

  • The archive is the product.

    Sides is built for the time you spend knowing, describing, and shaping the collection you own. It is a private place for that work, rather than a collection feature beside buying and selling.

  • You can begin before you know the exact release.

    Add a record with what you know today. Identifying a particular pressing can come later; uncertainty does not have to keep the record out of your archive.

  • You choose the language of your archive.

    Sides offers starting values for genre and other descriptors, then lets you add your own. If you hear a record as Electronic or Techno rather than Punk, your archive can reflect that judgment.

  • The music can be as specific as you need.

    In a classical collection, the work, conductor, ensemble, soloist, and performance can distinguish one recording from another. Sides makes room for those details without making every record a research project.

  • You can keep curating, not just keep count.

    New acquisitions, discoveries, and reorganizations change how you see your collection. Sides gives you a practical way to revisit records and make related changes together, so the archive stays worth maintaining.

  • Built for collectors, by collectors.

    The people building Sides collect records themselves. They know a collection is something you live with, learn from, and continually reshape. That collector’s perspective guides Sides, even if buying, selling, or trading is part of your story.

Organize your collection

Collections

Create a Collection around any grouping you want to revisit. A Title can belong to more than one Collection without changing its archival metadata. Collections organize Titles. They do not define what those Titles are.

Locations

Keep a reusable list of the places where records live, then attach the right Location to a Copy during intake or refinement. Locations record your arrangement. They never prescribe it.

Groups

Use rich filters to find the records you want to revisit, then make shared changes across your selection. A change in how you understand your collection can carry through the archive without reopening every record.

Lookup

Search your archive to explore what you have, or use it for a quick answer when a record catches your eye. Find what you own and see the details you saved, whether you’re at home or out looking for music.

Classical is no problem.

How do you save classical, spoken word, or soundtracks when you need more detail than album and artist? A classical performance has a composer, a conductor, an orchestra or ensemble, a venue, and sometimes a soloist or featured vocalist, and it all matters in your archive.

Sides provides the details you need for the records that need them.
  • South Pacific original Broadway cast recording album cover.
  • Glenn Gould performing Bach's The Well-Tempered Clavier, Book II album cover.
  • Inside Shelley Berman comedy album cover.
  • Mahler's Symphony No. 5 conducted by Leonard Bernstein album cover.
  • Beethoven's Eroica Symphony performed by the Los Angeles Philharmonic Orchestra and conducted by Carlo Maria Giulini album cover.
  • Dvořák's Symphonic Poems conducted by Václav Neumann album cover.
  • Frank Sinatra's In the Wee Small Hours album cover.
  • Puccini's La Bohème featuring Pavarotti and Freni album cover.

What Sides is not

  • A marketplace or storefront

    On marketplace-driven record platforms, your collection lives inside a system built for buying and selling. Sides keeps your Archive separate from commerce. It is designed for stewardship, not seller listings.

  • A social network

    Sides does not turn your Archive into a public profile. It is not built around feeds, likes, follower counts, or community forums.

  • A shared global catalog

    Many record collection platforms require you to identify the exact release before you can add a record. Search for an artist and title and you may face dozens of nearly identical choices. That demands you understand the catalog before you can use it. Sides lets you start with what you know and add detail when you are ready.

  • An advertising platform

    Sides is not supported by advertising. There are no ads in your Archive, and advertising is not part of the product experience.

  • A price guide or investment tracker

    Sides lets you add a record's purchase price and insured or estimated value. It does not calculate, verify, or update those values against a market. They are values you enter for your own records.

  • A walled garden

    Your Archive should remain useful beyond Sides. Archive portability matters for backups, insurance records, and use elsewhere. Exact export contents and formats will be published only after they are verified.

Meet Maestro, the Sides AI assistant

Maestro researches the recording in front of you and helps fill Sides’ category-aware intake form. It can propose. It cannot decide.

Maestro has no access to your Archive. It cannot browse, explore, edit, merge, reorganize, or save Archive records. It researches outside evidence only for the intake in front of you, and its findings do not become part of a shared global catalog.

Manual intake remains available. You review every proposed value.

Outside evidence For this intake only
Proposed values Awaiting your review
Your Archive No Maestro access

Questions, answered plainly.

What is known now and what is still being readied for release.

What is Sides?

Sides is a private, user-authored Archive for physical recorded music. It helps archivists and collectors capture what they own, refine the details over time, and organize records on their own terms.

Who is Sides for?

Sides is for archivists and collectors with physical music collections, whether the collection is large or small and whether they are new to the hobby or have spent years building an Archive. It is for people who want to curate what they own on their own terms.

What recording formats can Sides catalog?

Sides catalogs physical recorded music in many formats, including CD, LP, cassette, 7-inch single (45), 78 RPM, 8-track, reel-to-reel, 12-inch single, MiniDisc, SACD, DAT, and DVD-Audio. Sides is not limited to vinyl.

Do I need to know the exact release to add a record to Sides?

No. Sides lets you start with the information you know and add release details later. You can add the basics, full release details, or anything in between without choosing from dozens of nearly identical catalog entries first.

Can Sides catalog classical, soundtracks, vintage, and specialty recordings?

Yes. Sides provides category-appropriate details for recordings that need more than album and artist, including composer, work, conductor, ensemble, soloist, performance, release, and owned Copy relationships.

How does Sides work on desktop and mobile?

Sides uses desktop as the primary surface for curation and detailed refinement. Mobile is designed for reading your Archive and quick capture. Specific mobile capture methods will be described only when they are verified for release.

Will Sides organize my physical shelves?

No. Sides does not tell you how to arrange a room or require shelf order to match Archive structure. Locations let you record where a Copy lives without prescribing how your shelves should be organized.

How is Sides different from marketplace and social collection platforms?

Sides keeps your Archive separate from buying, selling, trading, social feeds, community forums, and advertising. Sides is designed for private stewardship, not seller listings, public profiles, or an advertising experience.

Does Sides use a shared global catalog?

No. A Sides Archive is user-authored rather than selected from a shared global catalog. Outside references can inform your decisions, but your approved records remain the source of truth for your Archive.

What is Maestro?

Maestro is the Sides AI assistant for intake. Maestro researches outside evidence about the recording in front of you and proposes values for your review. Maestro cannot decide what becomes part of your Archive.

Can Maestro see or change my Archive?

No. Maestro has no access to your Archive and cannot browse, explore, edit, merge, reorganize, or save Archive records. Only you can approve and save canonical Archive information.

Do I have to use Maestro or AI?

No. Manual intake remains available in Sides. Maestro can assist with outside research, but you keep authority over every value.

Is Sides a price guide or investment tracker?

No. Sides lets you add a record's purchase price and insured or estimated value, but Sides does not calculate, verify, or update those values against a market. The values are yours to enter for your own records.

Can I export my Sides Archive?

Archive portability matters for backups, insurance records, and use elsewhere. Exact export contents and formats will be published only after they are verified.

Pricing

A 14-day Sides trial includes up to 50 titles and 5 Maestro assists.

Crates

$6 / month

or $60 / year

  • Up to 50 titles
  • 5 Maestro assists each month

Shelves

$12 / month

or $120 / year

  • Up to 500 titles
  • 12 Maestro assists each month

Vault

$24 / month

or $240 / year

  • No set title limit
  • 25 Maestro assists each month

Research Packs

Need more Maestro research? Add a one-time pack to a paid Sides plan.

25 Maestro assists

$15 one-time

100 Maestro assists

$50 one-time

How Maestro assists carry over

Plan assists: Unused assists roll over each month, up to a total balance of 15 on Crates, 36 on Shelves, or 75 on Vault. Trial assists do not carry into a paid plan.

Research Pack assists: Unused purchased assists carry over separately between billing periods. Sides uses plan assists first, then purchased assists while paid access is active.

Prices are in USD. Annual plans are billed once a year.

Sides is taking shape

Build the archive your memory has been carrying.

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Product updates only. Joining the waitlist does not create a Sides account.