PROTOPLANETARY is one of the 14 eras on the community Alexsid46 / Synthsid tracker, which runs from Vs Da Bois to H12O8. The tracker places it after Synthsid WITH COSMIC! and before H12O8. unreleased.world has 6 tracks from it: 3 full songs and 3 snippets — 6 min of music in all, played 1 times on the site.
The tracker dates these leaks to 2026; the most recent, “FUMES KNOWN AS EXHAUSTION”, surfaced Sep 9, 2026.
The most played cuts are “ℏ”, “⭐️ J1407b, A Thousand Rings [V1]” and “🗑️ Presidential Parlor [V1]”. “⭐️ J1407b, A Thousand Rings [V1]” is the longest at 2:47.
Every track streams free in the player; open the EP to hear it start to finish.
The community tracker documents all of these 6 tracks, with leak dates for every track and producer credits for 3; it is in the tracklist below.
Tracklist
- 1⭐️ J1407b, A Thousand Rings [V1]Leaked Jun 28, 2026 · CD Quality · Throwaway · prod. Cosmic Donut2:47
- 2🗑️ Presidential Parlor [V1]Leaked Mar 16, 2026 · High Quality · Production · prod. Synthsid0:20
- 3🗑️ Presidential Parlor [V3]Leaked Apr 30, 2026 · High Quality · Demo · prod. Synthsid2:07
- 4FUMES KNOWN AS EXHAUSTIONLeaked Sep 9, 2026 · High Quality · Throwaway0:05
- 5ℏLeaked Sep 9, 2026 · Recording · Throwaway1 plays0:13
- 6Limit of x Going Towards InfinityLeaked Aug 19, 2026 · Recording · Throwaway0:10
Play PROTOPLANETARY in the player— every track, free, in order.
Most played from PROTOPLANETARY
- 1ℏ1 plays
- 2⭐️ J1407b, A Thousand Rings [V1]0 plays
- 3🗑️ Presidential Parlor [V1]0 plays
- 4🗑️ Presidential Parlor [V3]0 plays
- 5FUMES KNOWN AS EXHAUSTION0 plays
The PROTOPLANETARY era
PROTOPLANETARY is the rework of the original space album Synthsid had conceived prior to the creation of Kawaii Centre. Based off the information we have, the album would've seen an official release if Synthsid hadn't completely scrapped the idea to rework it.
- May-June 17-01, 2026Synthsid WITH COSMIC! morphs into PROTOPLANETARY, likely reusing old songs as their concepts are extremely similar
- June 28, 2026Synthsid confirms Synthsid WITH COSMIC! is fully scrapped during an interview in Brookhaven
- July ??, 2026PROTOPLANETARY gets scrapped in favor of H12O8
All 13 Alexsid46 / Synthsid eras
In the order the community tracker lists them.
More unreleased eras
From other trackers on unreleased.world.
Hear PROTOPLANETARY
6 tracks of unreleased Alexsid46 / Synthsid, free, in one fast player.
Open in the player