  Based on the available literature reviewed are results pertinent to the
effect of magnetism on lattice dynamics obtained by M\"ossbauer spectroscopy at
57Fe and 119Sn probe atoms. Presented and discussed are sigma-phase Fe-Cr,
Fe-V, Fe-Cr-Ni and lambda-phase (C14 Laves) NbFe2 compounds that belong to the
Frank-Kasper family of phases, metallic chromium and iron mono-arsenide, FeAs.
The common feature of all these metallic systems is itinerant character of
their magnetism. Two spectral parameters relevant to the lattice dynamics viz.
the center shift, CS, and/or the recoil-free fraction, f, are considered as
figures of merit. Their temperature dependences show anomalies at magnetic
ordering temperatures giving evidence that that vibrations in the magnetic
phase are different than those in the paramagnetic phase. The lower the
magnetic ordering temperature, the stronger the difference.
