The posters on the walls are evidence of the bar's long history of gigs, Midge Marsden and Bullfrog Rata among those joining the jam sessions. The bar has all but closed, a farewell gig by the Rotorua Sunrise Rockers tomorrow will be its last, at least with Mr Jongenelen as owner. He's been trying to sell it for a year but for now the doors will remain shut.
With old friends and musicians from through the years expected to pack out the bar one last time, it's likely to be an emotional afternoon.
"If my wallet wasn't empty I would have carried on," Mr Jongenelen admitted with tears in his eyes. "I haven't made a positive return in the last three years."
He puts that down to a number of factors including lower disposable incomes, drink driving and smoking rules, and Eat Streat.
"Eat Streat was part of my decline. Me not reacting positively against it. In hindsight we should have moved, been part of Eat Streat."
Ms Loderus, who continued helping out after the pair went from being a couple to just good friends, said 2006 to 2011 were probably the bar's best years. "It used to be shoulder- to-shoulder ..."
In 2011 Mr Jongenelen "died", he had a cardiac arrest in hospital and had no heartbeat for 23 minutes. He returned to the bar with a changed outlook on life.
"Priorities change. People and friendship are more important than money."
Noel Lamberton, technical director and a fellow founding member of Bay of Plenty Blues Club, said it was the "end of a musical era".
He said his favourite memories of the bar were seeing musicians walk in who'd never played on stage before that were now out playing around Rotorua. "It [Belgian Bar] helped Rotorua music a lot."
He said "PJ" and his bar would be sadly missed, although the Blues Club would continue at a new venue.
Mr Jongenelen doesn't know exactly what he'll do next, but one thing's for sure.
"As long as I'm in Rotorua I will be part of the music scene."