people are having trouble with the audio when they listen with vs without headphones?? I've never had that problem when I listen to your music. I can hear all of the audio just fine.
if you listen to it through a phone speaker, tablet speaker, or laptop speaker, you can't hear any of the bass, or any of the low frequencies whatsoever. it's just not there. it's physically impossible on a speaker of that size. any normal sized speaker would be just fine, but on a speaker less than 1cm, mostly what you hear is a lot of S and T, and the hi-hat, and maybe a little more if you listen close, but zero bass. which is why i think i would like to start the recording of my next song without any bass frequencies, just to make sure i get the thing so that i think it's strong enough even with zero bass. Then, go in and add bass as needed, for bass-capable systems. but first make sure it completely stands strong with no bass. we all know it's possible, like i said, they made music for game boy and it was damn good. and when i say gameboy i mean also millions of phone apps, and ringtones, that have been popular since then. but if you design the whole song on a system where you can hear the bass, you're taking a risk, because you never know if the song is still gonna be strong enough if you delete the entire bass. i've taken that risk for my entire career because i'm mostly too scared to think about it. but i think it's a good time to try to take care of it because phone/tablet speakers aren't going to get any larger, and there is no technological breakthrough any time soon that will allow bass to exist at that size. but don't worry, i will go into bass mode and additively put the bass where it needs be, after i get it so it is solid basslessly