  We present the adequate circular representation of charge density excitations
in Quantum Hall droplets at filling factor 1. A novel set of operators
describes magnetoexcitons with well defined both total and center-of-mass
angular momentum. The accuracy of this description is shown by the high overlap
of the magnetoexcitons with the exact eigenstates of a quantum dot in a
magnetic field obtained from numerical calculations up to 20 electrons. From
such magnetoexcitons we get a good understanding of total energies and spectral
functions.
