CITY OF JOHNSTOWN — Times are tough, said Brian DeLorenzo-Bochenek while tinkering with a musical instrument at the front counter of Vishnu Music.Foot traffic at the instrument sales, parts and repair center during the early winter months was lighter than usual, according to the store manager."For our business, it's kind of an extra thing," DeLorenzo-Bochenek said. "People don't have money as it is, they're not going to buy a guitar."Vishnu Music is among a number of downtown merchants in Johnstown wading through rough currents in the post-COVID-19 pandemic era. Some stakeholders are hopeful that spring and summer shoppers will soften the…