We often think of music as a mostly auditory experience, but it’s also a physical one, especially for people who are deaf and hard of hearing. Daniel Belquer — a Philadelphia-based technologist, composer and “chief vibrational officer” of Music: Not Impossible — has been studying the relationship between sound and sensation, and how that connection can make music more accessible. “Marketplace Tech” spoke with Belquer about how his vibrating technology is helping people experience music in new ways.