If you think it can be done in virtual tags, please construct the formula.
Example:
Now
James Hetfield (lead vocals, rhythm guitar)
Kirk Hammett (lead guitar, backing vocals)
Robert Trujillo (bass, backing vocals)
Lars Ulrich (drums)
desired format
James Hetfield: lead vocals, rhythm guitar
Kirk Hammett: lead guitar, backing vocals
Robert Trujillo: bass, backing vocals
Lars Ulrich: drums