  I present some recent applications of a light cone QCD-inspired model with
the mass squared operator consisting of a harmonic oscillator potential as
confinement in the meson spectra. The model gives an universal and satisfactory
description of both singlet and triplet states of S-wave mesons. In the present
work P-wave D_s mesons are also investigated. The mass of the recently found
meson, D_s(2317) is reproduced fairly well by this simple model.
