  We present a covariant scheme to calculate mesonic transitions in the
framework of the Salpeter equation for $q\bar{q}$-states. The full Bethe
Salpeter amplitudes are reconstructed from equal time amplitudes which were
obtained in a previous paper\cite{Mue} by solving the Salpeter equation for a
confining plus an instanton induced interaction. This method is applied to
calculate electromagnetic form factors and decay widths of low lying
pseudoscalar and vector mesons including predictions for CEBAF experiments. We
also describe the momentum transfer dependence for the processes
$\pi^0,\eta,\eta'\rightarrow\gamma\gamma^*$.
