Processes of amorphization and crystallization of binary and multicomponent melts based on transition metals are studied. Comparative analysis of pre-crystallization structural changes and atomic dynamics under the conditions of forced quenching and deep supercooling of metallic melts is performed. It is shown that hydrogenation of the melts introduces specific features into the occurrence of pre-recrystallization processes affecting the atomic configuration, modulation of the frequency spectrum and fluctuation of the energy-band (electron) structure determining the vitrification and coherent nanocrystallization with combination of crystal clusters and clusters with noncrystallographic symmetry.