An expectant audience isn’t the only thing which can be seen from the main stage of Helsinki’s Flow Festival. Janelle Monáe, Manic Street Preachers and OutKast are also greeted by a gas holder looming ominously before them. This brooding remnant of the festival site’s former use as a gasworks brings a unique flavour to Flow. The setting and site are unlike that of any other festival.

Laura Mvula, despite her exotic-sounding name, is a quintessentially British artist. Not just because of where she comes from – Birmingham – but also how she stays humble and understated while dripping with talent. Her story is equally endearing. Mvula was working as a receptionist when her debut, Sing to the Moon, was released. Overnight, her world was turned upside down and over the next year she was nominated for nearly every major award going, taking home two MOBOs and one Urban Music Award.

Pianist Jerry Léonide arrived on the international jazz scene with a splash when he won the Montreux Jazz Festival solo piano competition last year.

Initiated in the latter part of 2011 by Jazz Warrior and multi-instrumentalist Orphy Robinson and pianist/sound sculptor Pat Thomas, I saw the shape-shifting ensemble Black Top play an incredible gig as a sextet at its spiritual home, Café Oto, as part of the 2012 London Jazz Festival. It was my favourite performance of that year's edition, by a country mile.

If the 15-word limit of a succinct listings blurb ever taught you a lesson let it be immediate suspicion of any performer or musician termed "jazzy". This wariness could extend to anything generically suffixed by "y" or "ish", simply because it suggests either pretence or a lack of original or strong identity. And yet if asked what a "jazzy" performance might be a few concrete elements come to mind; well-tuned glissandi, scored solos, precisely-timed appoggiaturas and that old crooner's classic "swing feel".

Too Late Blues has many individual aspects which, on their own, would make it notable. Released in 1961, it was John Cassavetes’ second film as a director following the ground-breaking Shadows, one of America’s first full-length expressionist art films. As Shadows had, it centres on jazz and depicts a world which was then thriving, showing it from the inside. It stars Bobby Darin, one of America’s most important and multi-faceted musical figures.

As the name suggests, New Orleans’ Preservation Hall Jazz Band was established to promote traditional New Orleans Jazz. This release is the band’s first of original material, and the fact they haven’t been short of a tune since foundation in 1961 only confirms what any jazz-lover will already know, that the traditional New Orleans repertoire is pretty well represented in the record catalogue already.

DJ, broadcaster and all-round musical pioneer Gilles Peterson is one of the most influential figures in contemporary music. In a career that has grown from a DIY pirate station to running a succession of record labels, global DJing appearances and his own Worldwide Awards, he’s become famous for his commitment to the most unexpected combinations of new sounds and genres, drawn from restless collaborations worldwide.   

As dance music once more sweeps the mainstream, we're returned to the situation of the 1990s where singer and song can seem to become a little detached. Parades of “featured vocalists” deliver refrains for the producer teams who are queueing up to repeat the success of Route 94, Clean Bandit, Duke Dumont and above all Disclosure. And as the field gets more crowded, so the requirements for the singers to sit back, know their place and deliver the simplest hooks become more pressing.

French band Pulcinella is little known over here, but the release of their third album Bestiole (meaning nothing more ribald than “tiny creatures”, apparently), coincides with a brief UK tour, and is looking like the beginnings of a breakthrough. A quartet of sax, accordion, percussion and bass, with an exotic array of guest instruments, they’re self-consciously experimental, but melodic and humorous with it.