The unusual wooden machine, crafted by musician Martin Molin, 33, makes tunes using marbles which travel along tracks and interact with drums, cymbals and a vibrophone.
Using engineering and physics expertise, the contraption is powered using a hand crank which kick starts the process, mobilizing a central wheel which shoots the small round balls into action.
The impressive music created sounds as if it has been produced by multiple musicians or a complex computer programme.
A video of the completed project, produced by fellow Swede Hannes Knutsson, had scored more than 55,000 views by 5pm on Wednesday, after being uploaded just a day earlier.
Meanwhile social media also cranked into action as fellow Swedes and global fans alike sounded off about the invention.
This is the raddest thing you'll see all day today: https://t.co/PeVAkqx47B— Brian Brushwood (@shwood) March 2, 2016
Molin, who hails from Karlstad in central Sweden, but is now based in Gothenburg and plays in the band Wintergatan, spent 14 months bringing his idea to life, despite first imagining it would only take two.
He recently joked on the project's website that the initiative had been far more tricky than he imagined.
"The closer the machine gets to be finished the harder it gets to finish it. It is strange how that happens, when the finish line is in sight, everything slows down automatically except the avalanche of new unforeseen problems," he said.
"We need to start making music now and spend less time picking up marbles from the floor soon soon soon. But it is happening."