{"sheet-detail:post:3475397124":{"t":"s","isFree":false,"metaMusician":"Angela Aki","metaSong":"Letter To My 15 Year Old Self","metaMemo":null,"metaMaker":"THETA PIANO","youtubeVideoId":"gJW3xLs9g0E","youtubeShortUrl":"","tiktokUrl":"","instagramUrl":"","thumbnailUrl":"https://cdn.mapianist.com/preview-v2/45e7ba0106f54c7d84c908f7d2798ef8-1778555699.webp","provideType":"print","hasCoupon":false,"hasLesson":false,"status":"on_sale","releaseAt":null,"price":5200,"retailPrice":null,"copyrightCode":"45a9d03dc546e3d4860ffac18c1151fc","useDays":90,"confirmedAt":"2026/05/12 12:13:57","weight":1,"msaSheetId":100342,"redirectToPostId":null,"lastSyncedSourceAuditId":116171,"lastAttemptedSourceAuditId":null,"lastSyncedDispatchId":null,"isQualityAudited":false,"externalAuditKey":null,"hasMxl":false,"postId":163252,"title":"Angela Aki - Letter To My 15 Year Old Self by THETA PIANO","description":"","category":["jpop"],"views":173,"likes":0,"comments":0,"isViolation":false,"createdAt":"2026/05/12 12:13:57","updatedAt":"2026/05/12 12:13:57","authorId":1397103,"author":{"userId":1397103,"name":"THETA PIANO","profileUrl":"https://cdn.mapianist.com/profile/default.png","coverUrl":null,"authLevel":1,"point":0,"isArtist":true,"isNoblesse":false,"isTrophy":false,"isOfficial":false,"isLessonManager":false,"followingCnt":0,"followerCnt":0},"tags":[],"priceForPermanent":8800,"sheetPostMeta":{"metaId":160334,"postId":163252,"songId":null,"tempo":null,"level":4,"season":null,"weather":null,"timing":null,"topic":null,"event":null,"feel":null,"paperType":null,"instrument":null,"sheetType":"2staves","instrumentation":"solo","includeLyrics":false,"includeCode":true},"copyrightId":12,"instruments":["piano-88keys"],"realtimeUsers":0,"sheetFiles":[{"relationId":251355,"fileType":"sheet","fileId":3004311,"previewState":"complete","meiState":null,"file":{"fileId":3004311,"fileName":"手紙〜拝啓十五の君へ〜.pdf","mfsKey":"48a364abf590a4f3adb5ec86669a9acd"},"previews":["https://cdn.mapianist.com/preview-v2/45e7ba0106f54c7d84c908f7d2798ef8-1778555699.webp","https://cdn.mapianist.com/preview-v2/5d12fbb9ea004bbb930394fcf04a8ea7-1778555700.webp","https://cdn.mapianist.com/preview-v2/f5f8eaf95a274b94ad09bed09fe9dcb9-1778555700.webp","https://cdn.mapianist.com/preview-v2/912970315c624e59a8a2779cd294d52a-1778555701.webp","https://cdn.mapianist.com/preview-v2/19efb5573479440b85aab586a7c6d190-1778555702.webp","https://cdn.mapianist.com/preview-v2/174f2cec42c6430f88edbb70a9641b34-1778555703.webp"]}],"imageFiles":[],"royalty":null},"web2app-mms-public-sheet:600608387":{"productId":100342,"productType":"sheet","sheetId":100342,"title":"Letter To My 15 Year Old Self - Angela Aki by THETA PIANO","metaMaker":"THETA PIANO","metaMemo":"","metaMusician":"Angela Aki","metaSong":"Letter To My 15 Year Old Self","isFree":false,"thumbnailUrl":"https://img.musicfive.com/prebuild/4ab3819d6bade4baa2c4e8111b6493ef","instruments":["piano-88keys"],"instrumentation":"solo","sheetType":"2staves","includeChord":true,"level":3,"currency":"USD","price":4,"priceForPermanent":6.8,"priceForExtended":5.6,"retailPrice":null,"discountEndAt":null,"updatedAt":"2026-05-23T08:57:21","includeLyrics":false,"supportCountry":null,"excludeCountries":null,"isVideoAvailable":true,"videoAvailability":{"isAvailable":true,"reason":null},"description":"

I make piano sheet music. See my sheet music and tutorial videos on YouTube!

If you like it, please buy my sheet music!!

▼Piano Sheet Music

https://www.thetapiano.com

(J-pop hits cover mainly)

▼My YouTube channel

https://www.youtube.com/user/theta819

※日本国外から購入される方のためにこちらのサイトを利用しております。

国内の方はYouTubeチャンネルやホームページより、他の販売サイトをご確認ください。

価格が異なる場合がございます。

","hasMxl":true,"trialAvailability":"NOT_ELIGIBLE","status":"ON_SALE","youtubeId":"gJW3xLs9g0E","youtubeStartTime":null,"createdAt":"2023-03-02T05:32:24","iamUuid":"4b75e75af67173189114a36231d8a231","isViolation":false,"likes":0,"author":{"artistUrl":"thetapiano","authLevel":1,"createdAt":"2023-01-30T02:39:25","iamUuid":"4b75e75af67173189114a36231d8a231","isArtist":true,"isOfficial":false,"name":"THETA PIANO","profileUrl":"https://img.musicfive.com/dynamic/GmhuQ2BRTBc33zOYEcFjsA/diDrDVdZ5S7YIayooyx9Eaqdtzk5DgSl39YjATf4hCjCZTS_RrJG5MGa_EC_uVsuZQN6oc3iw7QJ-KXbrfSni0dfXZwmdsd7olAEEfFd8WmSRrse04QWWkvRLKHSqylhCVS8ivNlOJtR7pTzBq9vCzIEpKD8RCN5eQys6C9GBiHDyiPzRUdlbYMde25kGfXyh8d-h_UfR20hpp477Jg1ffrBd3bdSeL6rAHqWt7Ccfm0AJ1I_6I.auto","userId":541196,"sheetsCount":840,"likes":567,"reviewScore":4.914141414141414,"reviewersCount":396,"facts":{"entityType":"Person","sameAs":["https://www.youtube.com/channel/UCUoh-YtyEGCUNEFzBJp5sFA","https://www.thetapiano.com","https://www.instagram.com/theta.gram/"],"properties":{"knowsAbout":["Piano arrangements","J-pop","Anime music","Band scores"]}}},"bilibiliUrl":null,"territoryOfSong":null,"reviewScore":null,"reviewersCount":0,"youtubeShortUrl":null,"instagramUrl":null,"tiktokUrl":null,"productStats":[],"tags":[{"localized":"Graduation","imageUrl":"https://img.musicfive.com/dynamic/NjvZZTYU19uqydiZP3l1mQ/nrPN8lVHROBzb1hf8If6sABJfa8aim-2-mSFxoruv0v5hKEDY45O3VJFsNlfkRcBdEvSxo6HfctvNzM08ytDgZaWsIReDxRYnpG6aeTFWlOX4b8uKlFXvpom9ZQvVBvTwapugd8VW2_IO5N62osiGfzf9_avvJQul1ftoQzAB3cJgEqIDs8aBEO_MtdaRQist6MF0JSkBoLnZE1Lbc1Me--MdPxB6UljS8SSjbYjt2EQ8w2ETtN7W1Q.auto","tagId":"4460df7792caf373bc099d0c46daa250","aliasUrl":"graduation-song","category":"theme","sheetsCount":1856,"packagesCount":25,"likes":0,"status":"PUBLIC"},{"localized":"手紙～拝啓 15の君へ～","imageUrl":"https://img.musicfive.com/dynamic/HaShQd_pwoLde8wgGhR2hw/a1PWdZ5L0tTEjjrM23LXjxSlyV2rZkbul6YtQRq0NnfIxW8itCAVI1XIGZJgHHytJQ1POSOJaCTMz3mrSBwtGul2dBYAO1CRucwRImyTcXlcRXyfsri5J_ajHxlud9-wdttOEqohEoEvp5_lZFMm6uaLCzasclTQzGTG48ll4uQp1eAdhrGiIu2OdORumry7vL7nqDuV8l5_Q-LlLkMFL1tEQgeOkk6LoxZNePmJn9F3GIFHMloPkZg.auto","tagId":"45a9d03dc546e3d4860ffac18c1151fc","aliasUrl":"angela-aki-letter-to-you-15-years-old","category":"song","sheetsCount":81,"packagesCount":0,"likes":0,"status":"PUBLIC"},{"localized":"JPOP","imageUrl":"https://img.musicfive.com/dynamic/powc3B2SxMR_eLufNIPxYw/x3pXfrhEq4NO-h7Pyb_D1c1dePlcU3vClbq0WjCFBav3ogK06nbIlQZ__krqOgOidFSCwzLmSDyZuwFtzlHt73vzwVG9PVsEuzahHaL-0B2iuewK0l5FsDqmgtbZIHPzEgHHF0Zuidc7QpQ3ArILyQ3gPUh6R9yy4l1sl9qz5RUKBLMZPf7zz8Ci41JlsasPA_uaxlEzQWxp3RkQW_kmXYdPkvydRbpa8y5VgoLHb3gG7KIg_soze8I.auto","tagId":"4e12b2ac67e80d67a3df1db384274039","aliasUrl":"jpop","category":"genre","sheetsCount":111152,"packagesCount":2535,"likes":0,"status":"PUBLIC"},{"localized":"Angela Aki","imageUrl":"https://img.musicfive.com/dynamic/6pb68cMuGGjB9a3oSAcP7Q/rkFRa-2FzbAHMG1if26knDh35JcCm8G-MsWlC-e7WwTdqALyzfV_gOdvR3aLbCtuomH3fqwYh3ORNfYPAQG9E0GFw2xYeBkvEMBNL6pSUzdsXqOvmK-DvUv2gwBi1fBdI09l1AZqlz8FwldulFFPD9QSvTcJv2kRt3zK3PbwMkEA_Z5s0Npnq1mdlRhmuSVOX3fedpKt4LrOkd0QEpwmIXS2zP02WvbRkxrlKw7owzmMyC2HnnM9I38.auto","tagId":"4ed890e5fd398d23bfff9bd58f76919f","aliasUrl":"angela-aki","category":"musician","sheetsCount":82,"packagesCount":0,"likes":0,"status":"PUBLIC"}],"files":[{"fileName":"手紙〜拝啓十五の君へ〜.pdf","purpose":"sales","mfsKey":"459fa569e322d71290958de6cb66207e","previews":["https://imgproxy.mapia.io/prebuild/4ab3819d6bade4baa2c4e8111b6493ef","https://imgproxy.mapia.io/prebuild/4b162e48740df9e98d10ad0cf79da6a6","https://imgproxy.mapia.io/prebuild/4fe3dafb71b299c7b10f4c971e052242","https://imgproxy.mapia.io/prebuild/4f932e8c81f12a5d8126eadc90a4ad89","https://imgproxy.mapia.io/prebuild/497d63b902cf01cab74951d672928ccc","https://imgproxy.mapia.io/prebuild/4db204af9b5ab469af980566b61ca928"],"previewSrcsets":[],"sheetId":100342,"actionType":"print","pages":6,"mxlMfsKey":"45838799057a7e9cae4fb2cb3202d919","playbackAudioMfsKey":null,"playbackMap":null,"layoutMap":null,"downloadLimitInfo":null,"musicFacts":{"measures":119,"seconds":227,"bpmMin":126,"bpmMax":126,"beatUnit":null,"beatDots":null,"keys":[{"measure":0,"fifths":-4,"mode":"major"},{"measure":57,"fifths":-3,"mode":"major"},{"measure":81,"fifths":-4,"mode":"major"}],"times":[{"measure":0,"beats":4,"beatType":4}],"range":{"low":27,"high":85,"lowName":"D#1","highName":"C#6","semitones":58,"tessituraLow":29,"tessituraHigh":80},"maxChord":4,"chordSpan":12,"voices":2,"verses":null,"sections":[{"name":"A","measure":9}],"repeats":2,"voltas":2,"navigation":null,"parts":[{"name":"Piano","sound":"keyboard.piano","kinds":["keyboard"],"range":{"low":27,"high":85,"lowName":"D#1","highName":"C#6","semitones":58,"tessituraLow":29,"tessituraHigh":80},"vocalRange":null,"tab":null,"percussion":null,"transpose":null}],"hasTab":false,"hasChords":true,"hasChordDiagrams":false,"hasLyrics":false,"hasVocal":false,"hasPercussion":false,"hasFingering":false,"fingering":null}}],"copyrights":[{"org":"NEXTONE","territoryOfSong":null,"code":null,"remarks":null}],"realtimeVisits":0,"isPopularInEdu":false,"isAuditedByPlatform":false,"specialRule":null,"seoInfo":{"title":"Letter To My 15 Year Old Self - Angela Aki Piano Sheet Music","description":"Letter To My 15 Year Old Self by Angela Aki: Advanced Piano Sheet Music. A♭ Major, 126bpm, With Chords. Instant download & print. 6 Pages. JPOP. Made by THETA PIANO.","keywords":[],"imageUrl":"https://img.musicfive.com/prebuild/4ab3819d6bade4baa2c4e8111b6493ef","landscapeImageUrl":"https://img.musicfive.com/dynamic/Y79_9b6MAAKmzjKvGugNwQ/0C6ti66QIN7zhLXosbiWiUylzeeVo30cLEo9g8UTUUxPHrQPhXANQKUnYBWuyzJL0SSergSGyq0GMRSpW8kIGG16p988UdVmB3JeNvdirGrRHaa_PVbfzMutiU4zJbvLcf8Bc5WlfB3kM5lOa4kqpTN14cG0o3b-95iqYb4HtGnb_pMLlfh7RUN6D086PB9dASXmQQ.webp","hreflangLangs":["en","ko","ja","zh-hans","zh-hant"],"breadcrumb":null},"isOriginal":null,"firstMasking":true,"aliasUrl":{"default":"letter-to-my-15-year-old-self-angela-aki-100342","en":null,"ko":null,"ja":null,"zhHans":null,"zhHant":null},"adsConversion":null,"kokomuSheetId":138105,"mmsSheetId":null,"bundle":null,"mapianistSheetId":163252,"supportSubscription":true},"sheet-detail:packages:3577634321":[],"sheet-detail:lectures:2271070681":[]}

Angela Aki - Letter To My 15 Year Old Self by THETA PIANO

인기 악보

인기 악보 모음집