Jaster,
Oh the imbalance of ears, both my parents sometimes will experienced it, n will feel giddy, once my mum can't even walk straight. Or try take turns for nights feeding. I alone take care at night for few weeks and I told my hb v tiring I cannot tahan, so now night duty I do mon to wed, my hb thur & fri.
Now on classical music and he like enjoying in his Yao Lan slowly listen till fall asleep. If he ok, will try put on cot & on the music, as now he still need Yao Lan to sleep but at least no more screaming & wailing. Try FM92.4 all classical ones.