Why is Rhode Island’s housing stock out of reach for many of the state’s low- and moderate-income residents? A moderated discussion explores the barriers to the creation of more affordable housing in the state and addresses issues related to housing finance, development, municipal governance and inequities. Carmichael Auditorium, Institute at Brown for Environment and Society, 85 Waterman Street.

The Brown Wind Symphony honors graduating seniors in a special concert of music by John Philip Sousa, Percy Grainger and Leonard Bernstein. The concert also includes two percussion ensemble pieces and a saxophone quartet. Reception to follow. Grant Recital Hall, 105 Benevolent Street.

The Nelson Center for Entrepreneurship, Slater Technology Fund and Venture Cafe Providence host a sushi networking event to celebrate state entrepreneurship. Members of the public and the Brown community are invited to mingle with the state’s leading entrepreneurs, innovators and investors, including recent Brown graduates who are building startups in the state. Turbine Hall, South Street Landing, 350 Eddy Street.

Speaker and multimedia artist Kelly Milukas builds a bridge between two branches of academia by exploring the mysteries of art and science through photography and three-dimensional artwork. Her work is aimed at advancing the translation, education and communication on regenerative medicine, stem-cell research and biotech therapies. Room 305, Pembroke Hall, 172 Meeting Street.

The John Nicholas Brown Center for Public Humanities hosts a two-day collaborative walk through Providence. Rather than using guidebooks, participants will create a make-as-they-go experience through every single one of the city’s 25 neighborhoods. Registration, and attendance at a May 1 meeting in which all participants will create a rough route together, is required.