No bro just uninstall the walkman in the Rom and just flash a better one from Rizal rovins...from xperia V or Z or Z ultra..it will have better feel and in fact a widget(trust me it's better) too
hit the thanks if I helped you,don't just say it...
sent from my E dual C1604
Sony Xperia E dual C1604
MY OWN NoZ ROM
STOCK KERNEL WITH CWM.....
HIT THE THANKS IF I HELPED YOU...IT'S FREE ACTUALLY BUT MEANS A LOT TO ME