i meant, it's likely an e♭ minor chord with a major 6th added (C).
to me, the major 6th in a tonic chord (whichever octave it may be in) does imply that you might wanna move to a IV chord later, because the major 6th is also the major 3rd of the IV chord.
that's what i was getting at.... but it really ain't universal, it's just a blues/jazz staple as i tried to say. it just....sounds nice, you know
in this case, you can shift the lowest B♭ down a wholetone and you get exactly that, a jazzy IV chord function.
god, it's so easy to cause more confusion than help with this notation stuff if you're not on point. my bad.