That cover pits the threat of some ECM'esque jazz blandness against Suzuki's earlier street cred from his freaky world fusion days, and generally speaking I'd have to say the cover has it.
Thinking back, that might not seem so surprising if you consider that Suzuki's music, even at its wildest, always flirted with compromise at some level. Just take ロック・ジョイント琵琶 ~ 組曲 ふることふみ (Rock Joint Biwa ~ Kumikyoku Furukotofumi): while the unexpected mix of psychedelic rock with biwa instrumentals and avant-jazz orchestrations (that wouldn't be out of place in the more experimental big band outings from Masahiko Satoh and Toshiyuki Miyama & The New Herd) resulted in some of his finest musical concoctions, it also appears that the recording of some of it was made to share the room with the taping of scenes for a pink film, leading the band, as they leered on occasion at their randy roommates, to let the music follow suit and take on some cheaper 'japsploitation' hues. That's how I explain it, anyway.
On this here Primrose, though, Suzuki wasn't going for compromise; he was going for a complete overhaul, in the form of some well-behaved jazz piano trio.
Perhaps that was a way to dilute the questioning more far-out artists can so often face, in art forms where a certain technical proficiency sets the bar for recognition, on whether they can actually play it straight; but if you're one of those people who feel that pushing the boundaries is no less a distinctive artistic feat than honing a craft defined by a clear set of skills (feats which may coexist in the same artist, but not at all necessarily), you probably can't help but question what's the point in proving you can pull off something (which you might argue he (partly) did; at least "Crystal" is a lovely ballad) that thousands of other artists have pulled off before on a million other records.
That is a question this album doesn't seem to have any real answer for, or is even remotely concerned with, so it might have been pointless to ask. Maybe it was just what he felt like doing at the time; 'expectations be damned!'
Even so, consciously or not, "Dis-charge", shaking the jazzy business as usual with a few extra mood swings, can be thought of as offering a suggestion on how to address the inevitable crossfire of criticisms you'll face when planning to change artistic gears: even if you disappoint everyone at present, it'll still make a difference going forward when you do it with panache.