  A numerical study of convection with stress-free boundary conditions in the
presence of an imposed magnetic field that is tilted with respect to the
direction of gravity is carried out in the limit of small magnetic Reynolds
number. The dynamics are investigated over a range of Rayleigh number $Ra$ and
Chandrasekhar numbers up to $Q = 2\times10^6$, with the tilt angle between the
gravity vector and imposed magnetic field vector fixed at $45^{\circ}$. For a
fixed value of $Q$ and increasing $Ra$, the convection dynamics can be broadly
characterized by three primary flow regimes: (1) quasi-two-dimensional
convection rolls near the onset of convection; (2) isolated convection columns
aligned with the imposed magnetic field; and (3) unconstrained convection
reminiscent of non-magnetic convection. The influence of varying $Q$ and $Ra$
on the various fields is analyzed. Heat and momentum transport, as
characterized by the Nusselt and Reynolds numbers, are quantified and compared
with the vertical field case. Ohmic dissipation dominates over viscous
dissipation in all cases investigated. Various mean fields are investigated and
their scaling behavior is analyzed. Provided $Ra$ is sufficiently large, all
investigated values of $Q$ exhibit an inverse kinetic energy cascade that
yields strong `zonal' flows. Relaxation oscillations, as characterized by a
quasi-periodic shift in the predominance of either the zonal or non-zonal
component of the mean flow, appear for sufficiently large $Ra$ and $Q$.
