Emily Day & The Cosmo Alleycats perform vintage jazz, swing, blues, and R&B throughout the San Francisco Bay Area music circuit. The ensemble regularly appears at established venues including Keys Jazz Bistro and The Chapel. Their repertoire spans traditional hot jazz arrangements and classic R&B standards, maintaining the original spirit of these genres while adapting them for contemporary audiences. Lead vocalist Emily Day fronts the group's live performances, which focus on danceable interpretations from the American songbook. The band connects with the Bay Area's active vintage jazz and swing dance communities through regular concert bookings. Tickets for upcoming shows are available through Eventbrite and venue-specific platforms. The Cosmo Alleycats contribute to San Francisco's current jazz revival movement alongside other local artists and venues. Their performances incorporate elements from both traditional jazz ensembles and rhythm and blues orchestras. The group maintains an active presence in the regional live music calendar, participating in the area's established retro music events and dance gatherings.