


Liner - latest call for testers!
Hi r/plexamp,
Some of you may have seen my posts relating to r/Liner previously. We are again looking to bring on more testers as the app approaches its full release. Today, I want to introduce you all to Pulse, our track analysis engine that drives many of Liners features.
Pulse uses a number of data points in each track to build information about how each track sounds and feels. We use this data to give our users the ability to build blends and mixes to help them discover their own music library in new and interesting ways. This is entirely our own system, it does not run on the Plex Sonic Analysis framework, or require any aspect of it to run. With Pulse you can create:
- Blends - artist and album blends that mix in genuinely similar-sounding material, not "more songs by artists a service thinks are related"
- Feeling recipes - ask the app for "Loving", "Pumped", "Calm", "Wistful", and it builds a queue from your library that actually matches. Not moods, but how music FEELS.
- Time-of-day shelves - the homepage shifts through the day. Sunday morning looks different from Friday night.
All of it works the same whether your library lives on a Plex server, a Subsonic-compatible one or on Jellyfin. If you are currently a Plex user, and decide to switch to one of the other server systems, your Pulse matches are truly system agnostic, and travel with you. Switching is as simple as logging out of one, and logging in to the other!
Where the data comes from
There's a shared pool of pre-analysed tracks. When you add music to Liner, your tracks get checked against it. Matches arrive instantly. The pool continues to grow daily. Today we sit at a pool of 1.2m tracks.
What I need from testers
Use the app. Tell me when something's broken or when matches feel wrong. Diagnostic submission is built in. No usage tracking otherwise.
How to join
DM me with your Apple ID email address and I'll add you to the TestFlight team. Liner is currently iOS, MacOS and iPadOS only at the moment.