It’s no wonder jazzheads have been frequenting this snug South End club for nearly 70 years. Tapping both seasoned vets and young talents from Berklee, Boston Conservatory and New England Conservatory, Wally’s delivers live music every single night of the year, starting each evening with a jam session and ending it with showcases spanning blues, funk, Latin jazz and beyond. The enthusiastic clientele is equally diverse, and there are no pretensions, just good tunes.