Ebdim(maj7) - Eb,Gb,A,D in closed form, try a D/Eb which would yield an Eb in the bass with D,F#,A up above. Expect some doubling on the D sometimes, depending.

Em7b5sus4 - E,G,A,Bb,D - You might be able to use a Gm/E, which will yield the E bass with G,Bb,D above, no A. Gm9/E would add the A, but also will add an F to the other three notes. G2/E would substitute the A, but no Bb -- G,A,D and use the slash /E for the E in the bass.

Yeah, they are all workarounds.


--Mac