  We amend ab initio strongly-correlated band structures by taking into account
the band-tailing phenomenon in doped charge-transfer Mott-Hubbard insulators.
We show that the photoemission from band tails accounts for sharp
"quasi-particle" peaks, rapid loss of their intensities in some directions of
the Brillouin zone ("Fermi-arcs") and high-energy "waterfall" anomalies as a
consequence of matrix-element effects of disorder-localised states in the
charge-transfer gap of doped cuprates.
