Right to the point: comparing the two versions of the soundtrack. I’ve made a quick comparison with the Re:Currents track, which has been posted in full before, and is available in the 10-second playlist in the hub currently.
The track above is a minute long consisting of three sections, and best listened to with earbuds/headphones. The first fifteen seconds are of the piano version, while the next fifteen seconds are of the OST version. The last 30 seconds of the track are of both versions, panned hard left and right. The piano arrangement is in the left channel while the OST is in the right.