I did NOT Normalize.

All I did was Gain Change.

Made it come up into the -6dB to -1-8dB regions at the peaks.

Before, your wav was peaking at the -6dB point, sometimes peaking as low as -12dB, averaging about the midway point between there, -9dB.

That's too "quiet" for pcm digital audio on a pop song.

One also must avoid geing to loud in that respect. If it had needed more power (I don't think it does) then I would have reached for a Mastering Compressor instead. The likely reason I did not is that your backing tracks were made by pros and are likely compress mastered as they are. They sounded good and when something sounds good, I leave it alone. Your guitar evidently has compression of its own on its track, either by whatever guitar amp sim or effect you were using or perhaps by use of plugin after the fact, which I don't think is the case from what I hear, but could be.

Normalization is not a simple Gain Change. You can websearch a definition.


--Mac