Some progress has been made with compatibility.
It turns out that we can just remove the 64-bit half of the binary to force it to run in 32-bit mode on any device.
Unfortunately, it's heavily implied 32-bit will be dropped entirely in iOS 11, so enjoy it while it lasts.
Additionally, if you download tracks on a 32-bit version and install a 64-bit over it, you keep them downloaded, you just can't get more.
Don't try to replace it with an official App Store version though, they're seemingly incompatible and will result in loss of your downloads.
Finally, this is updated to the latest game version available: 3.9.8.
Actual link time!
Thinned (cracked 32-bit only): https://mega.nz/#!oxhDiZhT!B8FQL6TKzmGvAZ-zG-beYzWE-xBhB9bHuFJvnjkP8uQ
Mixed (normal 64/cracked 32): https://mega.nz/#!Eh5h2STZ!tFhksryekwPHLtQpiDes9Fdoyd92SJO3X5aVuQKoqzk
Instructions are the same as in the OP, just do it a second time to install the 64-bit version after you download the songs (if you're on such a device).
Enjoy~