  Light-front holographic QCD provides a successful first approximation to
hadron spectroscopy in the chiral limit of $(3+1)$-dim light-front QCD, where a
holographic Schr\"odinger-like equation, with an emerging confining scale,
$\kappa$, governs confinement in the transverse direction. In its
supersymmetric formulation, light-front holography predicts that each baryon
has two superpartners: a meson and a tetraquark, with their degenerate masses
being generated by the same scale, $\kappa$. In nature, this mass degeneracy is
lifted by chiral symmetry breaking and longitudinal confinement. In this paper,
we show that the latter can be successfully captured by the 't Hooft equation
of $(1+1)$-dim, large $N_c$, QCD. Together, the holographic Schr\"odinger
equation and the 't Hooft equation, provide a good global description of the
data across the full hadron spectrum with a universal $\kappa$.
