Song 4, similarly to Song 1, was relatively brief when it came to the mixing and mastering processes. I used the frequently used method of boosting the bass guitar tracks, but this time I also boosted the kick drum a lot while reducing the snare slightly. While I wanted the bass guitar to be the focal point for the song thanks to its melody, the kick drum needed to be heard to help keep the rhythm (it was a lot softer than usual thanks to the reduced velocity on the sequenced notes, which was also why I raised the volume on the kick so much). The snare, on the other hand, was too loud for my liking, and a reduction in the volume helped to make the song sound less harsh.
The mastering process was quite short as I only really needed to put a compressor on the kick drum, and an EQ and a compressor on the bass tracks. The kick drum used the compressor to gain a bit more of a thump from the lower frequencies, which also reduced the higher frequencies and made it sound less harsh to listen to, which was the effect I had intended for this song.
The bass guitars used the same EQ and compressor modifications because it allowed the tracks to produce a nice warm sound (quite loud in the lower frequencies without being too loud in the higher ones, producing a sound that is quite comfortable to listen to), which was exactly the kind of sound I wanted for the song. This was produced by using the same method I used on Song 3 – I reduced the lower frequencies and raised the higher ones in the EQ, which made the lower frequencies sound louder and reduced the higher frequencies when the compression was applied. I wanted to make this sort of sound because I wanted the song itself to be quite calming and comfortable to listen to, which is the embodiment of what a warm sound is, and I believe it worked really well.
The song, prior to the mixing/mastering stage, sounded like this:
The final song now sounds like this: