GMSH - Calculix Tutorials

GMSH Calculix Plate Frequency Analysis - Youtube
GMSH Calculix Beam Frequency Analysis - Youtube
GMSH Calculix Beam Harmonic Analysis - Youtube
GMSH Calculix Pressure on Plate - Youtube
GMSH Calculix Static Analysis with two different materials - Youtube
GMSH Calculix Transfinite Volume Mesh - Youtube

Octave/Matlab Tutorials

GNU Octave - Frequency Response of a SDOF System - Youtube