Music man now big discount 7 days 40%. Check also expensive game bundle where music man is added. That bundle is almost 80% discount: https://store.steampowered.com/bundle/22409/Valkeala_Software_4__bundle/
Launch and bundle discount
Source: Steam Community (opens in a new tab)
Build and release context
Recorded Steam release date:
Within one calendar day of this post (UTC). The listed date does not establish an exact launch time.