If you like Jagga Jazzist, who are more 'tame electronica' (à la Röyksopp) and more 'film soundtrack aesthetics' than 'jazzy' imho, then try some:
Medeski, Martin & Wood: ~ Probably the most inventive outfit in jazz at the moment. Endlessly creative; merging hip-hop beats, film soundtrack aesthetics, soul, funk, electronica and other random genres together with solid, organic, virtuoso
jazz musicianship. Best albums: "Uninvisible" & "End of the World Party". Check out the free Uninvisible video on their home page
here.
Nicholas Repac: ~ Much more like Jagga Jazzist and Röyksopp this guy. More of a delicate, unusual sampling and electronica delight than instrumental jazz experience. Check out an album called "Swing - Swing" and look out for some classic samples from some famous films, like the elocution lesson in "Singing in the Rain".
Cinematic Orchestra: ~ One of my favourites for a long time. Much like MMW, these guys meld many genres together and come out with a sound that well fits their name - classic, but modern, orchestral jazz, with BIG soundscapes.
Their website plays a different track each day of the week. Today (Friday) they're playing one they wrote as part of a new soundtrack for Dziga Vertov's landmark film 'Man With a Movie Camera', which they released as one of their best albums (of the same name), alongside "Everyday", which is another beautiful album of theirs.
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If you like The Breakestra, namely filthy funky jazzy breaks, then try some:
Art Ensemble of Chicago: ~ Big band playing large jazz numbers. More traditionally jazzy, but with a distinct funky edge.
The Mighty Imperials: ~ Part of the new wave of funk that's throwing a look back to the golden analog days. Dirty, loud, rough and - above all - fonkay!
Sharon Jones & The Dap Kings: ~ From the same movement as the Imperials, but with more soul from Sharon Jones. She's a belter of a singer, much like Aretha. And the Dap Kings are one of the tightest funk bands around at present. Tight like the JBs and they've made stuff with funky hip-hop guys too. Trust me, these guys are 'Red Hot' and even released a sizzling single with Jurassic 5 of that very name.
Enjoy!