  We show that the holographic Schr\"odinger equation of light-front chiral
QCD, together with the 't Hooft equation of (1+1)-dimensional QCD in the large
$N_c$ limit, can simultaneously describe pion spectroscopy as well as the pion
decay constant, charge radius, electromagnetic form factor, photon-to-pion
transition form factor, Parton Distribution Function (PDF) and Distribution
Amplitude (DA). Furthermore, the chiral-limit constraints, as encoded in the
Gell-Mann-Oakes-Renner (GMOR) relation, are satisfied.
