Stem Mastering While conventional mastering involves fine-tuning and processing of the final two-track mixdown, stem mastering focuses on the processing of the component stems (or mix groups if you prefer) of the mixdown/song. For example, the different instrument groups of a mix such as drums, bass, guitar, keyboards and vocals. Stem mastering gives the mastering engineer much more freedom of choice in the processing stage of the mastering and the …Read More