Aetherbound Vol. I - JRPG Music Pack

Most game music packs are a grab-bag. Tracks bundled together because they share a genre. Drop three of them into one project and your player hears the seams: different rooms, different instruments, different composers.

This is an album, not a bag. Fourteen tracks covering every slot an RPG actually needs, written in one musical language, from one family of themes. The boss theme is the battle theme grown up. The dungeon shares material with the boss it leads to. The victory stinger quotes the title. Your game gets a score, not a playlist.

What you get

• 14 x .ogg - OGG Vorbis, 44.1 kHz stereo, ready to drop in
• 14 x .mid - the editable MIDI sources. Re-voice them, re-orchestrate them, change the tempo, pull out a single line. Almost no music pack ships these.
• Sample-accurate loop metadata - LOOPSTART and LOOPLENGTH in the OGG Vorbis comments, in samples, exactly what RPG Maker MV and MZ read
• Per-engine import notes for RPG Maker, Godot, Unity and GameMaker
• A royalty-free licence for commercial games. No per-title fee, no revenue cap, no attribution required.

The fourteen slots

Title . Quiet town . Field and overworld . Forest . Cave . Dungeon . Battle . Boss . Final sacred place . Inn and rest . Victory stinger . Defeat stinger . Level-up stinger . Ambient bed

18 minutes 45 seconds of music. Ten different keys. Tempos from 58 to 168 BPM. One instrumental palette across the whole album.

Why the loops actually loop

The most common complaint about bought music packs is that the tracks are not really loops. They were cut at a bar line rather than written to repeat. Even with a sample-perfect loop point, if the music has any reverb or natural decay you still hear the seam, because the tail is missing.

Two things were done about that. Composed to loop: the final bar is written to sound into the loop point, and the harmony resolves onto the chord the loop restarts on. Rendered to loop: each track is rendered past its loop end, and that decay tail is summed back over the head of the loop, so the reverb carries across the join instead of being cut at it.

Eight themes, one family

Everything here grows from eight hand-authored themes, built from two recurring ideas: a rising perfect fourth (departure) and a step down and back (the sigh). Every track states at least one of them, in its original form, inverted, backwards, widened or compressed. That is what makes fourteen tracks sound like one score instead of fourteen files.

How it was verified

Every track was checked for key discipline, resolving harmony, voice leading (no parallel fifths or octaves between the outer voices), grid alignment, playable instrument ranges, melodic singability, a varying density curve, and loop-seam continuity. The audio was checked for silence, clipping, headroom, loudness, and that the loop tags in the shipped bytes match the composed loop.

341 checks passed, 0 failed. Both reports ship inside the pack as theory_proof.json and render_proof.json, so you can read them rather than take my word for it.

What those numbers are not: they establish that the music is technically sound. They are not a claim about taste. No automated check can tell you whether a melody moves you. Listen to the preview and judge that part yourself.

Engine notes

RPG Maker MV / MZ - copy the .ogg files into audio/bgm/. The loop tags are read automatically. No plugin, no configuration. Stingers go in audio/me/ or audio/se/.

Godot 4 - import the .ogg, then set Loop Mode to Forward and enter the Loop Begin value from the included track sheet.

Unity - Streaming for the long tracks, Decompress On Load for the stingers. Use the sample values with a scripted timeSamples jump.

GameMaker - drop the .ogg in as an audio asset and use the LOOPSTART value with audio_sound_loop_start().

Anything else - the .mid files are plain Standard MIDI Format 1 and open in any DAW or tracker.

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Pairs with

• Verdant 01 — Overworld Tileset — 239 tiles, 4 complete 47-mask autotile sets for RPG Maker MZ, Tiled and Godot.
• Wildmark 01: The Party — Four playable adventurers, 4 directions, 6-frame walks, native 128px and 64px.
• Sigil Core — Every skill gets a unique animated magic circle, derived from its own data.

Made by Core Systems Asset Factory. If you are building in RPG Maker MZ or GameMaker, the same shop has plugins and systems that go alongside this: browse the full catalogue.