Composed by Hydelic.

The soundtrack to the 2018 tile-matching puzzle game Tetris Effect is available digitally now to stream and purchase.

The album, composed by Japanese music group Hydelic, comprises 40 tracks of electronica music and includes performances by singer-songwriter Kate Brady and vocalist Mechi Pieretti.

In a new entry on the PlayStation Blog, Hydelic explained how the overall “mood and atmosphere” of the sound was first created and then incorporated into the game as the balance between visuals and audio was continuously adjusted.

“In the early stages of development, we created a rough demo showcasing the general mood and atmosphere of the sound. This was then implemented into the game, and from there our designer would alter elements or make visual adjustments to better align with the music, incorporating [synaesthetic] changes.

“This is when we started to get a better picture of details such as particle movement, which in turn allowed us to make further adjustments to improve the balance between visual and aural elements.”

Certain tracks went through quite a few changes, for example, over 10 tracks were initially written for the game’s first stage Deep Sea. The stage theme was originally ambient without any vocals, then beats were added, and finally Hydelic experimented with both male and female vocals. Through a process of trial and error, the track would end up being the soundtrack’s opening song titled “Connected (Yours Forever)” featuring vocalist Kate Brady (the in-game mix is embedded below).

Different tempos and time signatures were utilised to compliment certain emotions.

“When creating the feeling of excitement, for instance, we ended up gravitating towards a 4/4 time signature, with the tempo set around 135 BPM. When creating something designed to be calming, an uncommon 6/4 time signature felt more appropriate, with the tempo set around 100-120 BPM.”

Enhance Games has uploaded several tracks with visualisers to its YouTube channel, including the piano-laden jazzy “City Lights” and “World of Colors” which features singer Mechi Pieretti (both tracks embeded below).

The Tetris Effect soundtrack is available for purchase from Bandcamp and Google Play and can also be streamed from Spotify.

Tetris Effect is co-developed by Monstars and Resonair and published by Enhance. The game is available for PlayStation 4, Windows, and virtual reality platforms including HTC Vive and Oculus Rift.