Release v1.6.0 · whleucka/soprano

Listening

Data saver — a new profile switch. Streams everything as 128k Opus, including the high-bitrate lossy sources that used to be sent as-is. Roughly half the bytes, and on a weak mobile signal it is the difference between a track starting in a few seconds and stalling for the better part of a minute. It only re-encodes when the encode is meaningfully smaller than the original, so a 96k MP3 is left alone rather than "shrunk" into something bigger.
Transcode audio — a new profile switch, on by default. Turn it off to receive the original file untouched: better quality, far more data, and some browsers stall on large FLACs. Data saver has nothing to reach for while it is off.
ReplayGain follows whichever path a track actually took — baked into the encode when the track is served as Opus, applied by the player when it streams from the source, never both.

Crossfade now rides an equal-power (sin/cos) curve instead of two linear ramps. Complementary linear ramps sum to about -6 dB at the midpoint, so every handoff dipped in the middle and was heard as one track stopping and another starting; the perceived level now stays flat across the whole overlap.
Each side of a fade peaks at its own ReplayGain target, so the crossfade rides on top of normalisation instead of flattening it.
An end-of-track advance now names the track it is leaving, so the server can tell a retried advance from a genuinely new one. Before this, a retry that landed late advanced the queue for real and silently skipped a track.
The hidden-tab pre-advance handoff added in v1.5.0 has been withdrawn. The tagged advance retries cover the same lost-advance case without parking a second audio element mid-queue.

Rebuilt around one time window and the listening data.

One range selector at the top — 24 hours, 7 days, 30 days, 90 days, all time — drives every widget, and the choice is sticky per session. The four separate requests charts that all showed the same metric are gone. KPIs carry a delta against the previous equal-length window, suppressed for all-time rather than compared against a partial period.
New headline strip: listening time, plays, completion, listeners, library and reach, each with a sparkline.
New widgets: listening over time, listening clock, plays by source, source quality, top tracks, top artists, top albums, library growth, listeners, and visitors by country.
The eight operations cards that each duplicated an admin module collapse into a single Operations strip, with every cell linking through to the module that owns the detail.
Widgets declare their own band and position, so the layout is fixed regardless of registration order.

The Admin link in the sidebar and account menu is now shown only to clients flagged is_admin, instead of pointing every listener at a login wall they have no account for. The flag appears in no form or settings payload — granting it takes an UPDATE against the database.

Full changelog: v1.5.0...v1.6.0