If you still want to sideload this APK on your Android device (including non-Sony phones), follow this guide carefully. Most websites claiming to host Walkman_4.7.A.0.0.apk are filled with malware, adware, or fake download buttons. Do not download from random APK sites.
XPERIA Walkman 4.7.A.0.0 APK for Android: Is It Safe & How to Install (Google Drive Link)
But here’s the catch: Sony replaced it with a newer "Music" app, and this specific build is now considered legacy.
TechArena Category: Android Apps / Sony Mods