Just as international improvisers sometimes find a more welcoming atmosphere for their sound experiments in Canada than at home, so too have Canadian record labels become a vehicle to release notable free music sessions. Attesting to this openness, two of the most recent discs by British saxophone master Evan Parker are on Canadian imprints. But each arrived by a different route. One of the triumphs of 2014’s Festival International de Musique Actuelle de Victoriaville in Quebec, this performance of Seven by Parker’s ElectroAcoustic Septet (Victo 127) are available on Victo, FIMAV’s affiliated imprint. Consisting of one massive and one shorter instant composition, Seven literally delineates the electro-acoustic divide. Trumpeter Peter Evans, reedist Ned Rothenberg, cellist Okkyung Lee and Parker make up the acoustic side, while varied laptop processes are operated by Ikue Mori and Sam Pluta, with George Lewis switching between laptop and trombone, with his huffing brass tone making a particular impression during a contrapuntal faced-off with Parker’s soprano saxophone during Seven-2. At nearly 46 minutes, Seven-1 is the defining work, attaining several musical crests during its ghostly, meandering near time-suspension, allowing for full expression of instrumental virtuosity, dynamic flutters, flanges and processes from the laptoppists accompany, comment upon or challenge the acoustic instruments. Alternately wave forms loops and echoes cause the instrumentalists to forge their reposes. Plenty of sonic surprises arise during the sequences. Undefined processed-sounding bee-buzzing motifs for example are revealed as mouth and lip modulations from Evans’ piccolo trumpet or aviary trills from Rothenberg’s clarinet. In contrast the electronics’ crackles and static are often boosted into mellower affiliations that sound purely acoustic. Eventually both aspects meld into a climax of bubbly consistency with any background-foreground, electro or acoustic displays satisfactorily melded. More percussive Seven-2 has a climax involving fragmented electronics pulsating steadily as first Evans, then Rothenberg and finally Parker spill out timbres that confirm formalism as much as freedom.