  Tuning into the bass notes of the large-scale structure requires careful
attention to geometrical effects arising from wide angles. The spherical
Fourier-Bessel (SFB) basis provides a harmonic-space coordinate system that
fully accounts for all wide-angle effects. To demonstrate the feasibility of
the SFB power spectrum, in this paper we validate our SFB pipeline by applying
it to lognormal, and both complete and realistic EZmock simulations that were
generated for eBOSS DR16 LRG sample. We include redshift space distortions and
the local average effect (aka integral constraint). The covariance matrix is
obtained from 1000 EZmock simulations, and inverted using eigenvalue
decomposition.
