Mastering your tracks to be dynamic and loud to industry standard.
"Mastering is the final step of audio post-production. The purpose of mastering is to balance sonic elements of a stereo mix and optimize playback across all systems and media formats. Traditionally, mastering is done using tools like equalization, compression, limiting and stereo enhancement."
Mastering is the most important and in some cases the hardest part of music production. At this final stage the mastering can change the dynamics and feel of the song dramatically. This is why it needs to be done with love and care while taking industry standards and conformities into account.