Jazz is trendy again. Starting tonight, as it has for the past 24 years, the Toronto Jazz Festival is rolling into town, bringing with it a plethora of shows from renowned local musicians to big name out-of-towners. In his second year as artistic director, Josh Grossman has provided the festival with an expanded vision (both geographically and musically) and a formidable web presence. Our top picks include everything from mainstream, swinging jazz to hip hop, at every price point imaginable, including free.