2 0 1 1 . ▁It ▁was ▁announced ▁that ▁actress ▁Kar en ▁Mi y ama ▁vo iced ▁the ▁ 1 1 ▁year ▁old ▁lead ▁character ▁M omo , ▁while ▁singer ▁Y uka ▁is ▁vo icing ▁M omo ' s ▁mother . ▁In ▁addition , ▁actor ▁T oshi y uki ▁N ish ida ▁voices ▁I wa ▁in ▁the ▁film . ▁ ▁Th eme ▁song ▁In ▁an ▁announ cement ▁made ▁on ▁ 1 1 ▁July ▁ 2 0 1 1 , ▁it ▁was ▁revealed ▁that ▁the ▁theme ▁song ▁for ▁the ▁film ▁A ▁Let ter ▁to ▁M omo ▁is ▁the ▁song ▁ ▁by ▁Japanese ▁singer ▁Y uk o ▁H ara . ▁This ▁song ▁is ▁an ▁ac oust ic ▁piece , ▁and ▁it ▁creates ▁an ▁image ▁of ▁the ▁rich ▁natural ▁scen ery ▁of ▁the ▁Set o ▁In land ▁Sea . ▁The ▁" 美 し き 場 所 " ▁in ▁the ▁song ▁title ▁is ▁the ▁old ▁way ▁of ▁describing ▁" a ▁beautiful ▁place ▁to ▁live ". ▁H ara ▁wrote ▁the ▁song ' s ▁lyr ics ▁and ▁composed ▁the ▁music , ▁with ▁Jun ichi ▁S oga ▁as ▁the ▁editor ▁of ▁the ▁song . ▁ ▁Y uk o ▁H ara , ▁who ▁is ▁the ▁keyboard ist ▁for ▁the ▁Japanese ▁band ▁Southern ▁All ▁Stars , ▁reported ly ▁spent ▁ 5 ▁years ▁working ▁on ▁this ▁piece ▁of ▁music . ▁She ▁said ▁that ▁" I ▁loved ▁animation ▁from ▁a ▁very ▁young ▁age , ▁so ▁being ▁able ▁to ▁contribute ▁the ▁theme ▁song ▁for ▁this ▁film ▁makes ▁me ▁happy ▁and ▁hon ored ." . ▁