Ezra Collective’s victory at this year’s Mercury Music Prize confirmed what most of us already knew: jazz is booming. And for those who want more, the 31st edition of the EFG London Jazz Festival is just around the corner, with 10 days of live performances in more than 70 venues around the capital.There are performances by living legends in major concert halls, and homegrown talent in small, sometimes surprising venues. There are boundary-breaking experimentalists, extraordinary singers, iconic virtuosos and fresh talent from around the world. There are also films, exhibitions, free stages, family events and even jazz yoga. From the veteran to those new to the form, all jazz is here.