Chord Transposer

🇺🇸 English | 🇮🇩 Bahasa Indonesia

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\n",[153],"41de2358-0bd9-11f1-84db-42dde27851f2","chordTransposer.js","ef9041aa-0a0a-11f1-bd59-42dde27851f2",133,["D",1771316316597],18,"script","const $ = (elt) => document.querySelector(elt);\nconst transposeBtn = $(\"#transpose-button\");\ntransposeBtn.addEventListener(\"click\", transpose);\n\nfunction transpose() {\n const chords = $(\"#chords-input\").value;\n const transposeBy = $(\"#transpose-by\").value;\n const chordArr = chords.split(\" \").filter((chord) => chord !== \"\");\n const majorChordArr = getMajorChords(chordArr);\n const transposedChordsArr = majorChordArr.map((chord) =>\n transposeSingleChord(chord, parseInt(transposeBy))\n );\n const chordTypesArr = getChordTypes(chordArr);\n const completeTransposedChordsArr = rejoinTransposedChords(\n transposedChordsArr,\n chordTypesArr,\n );\n console.log(chordArr, transposedChordsArr);\n const output = $(\"#chords-output\");\n output.value = completeTransposedChordsArr.join(\" \");\n}\n\nconst majorChords = [\n \"C\",\n \"C#\",\n \"D\",\n \"D#\",\n \"E\",\n \"F\",\n \"F#\",\n \"G\",\n \"G#\",\n \"A\",\n \"A#\",\n \"B\",\n];\n\nfunction getMajorChords(arr) {\n const majorChords = arr.map((str) => {\n if (str.includes(\"#\")) {\n return str.slice(0, 2).toUpperCase();\n } else {\n return str.slice(0, 1).toUpperCase();\n }\n });\n\n return majorChords;\n}\n\nfunction getChordTypes(arr) {\n const chordTypes = arr.map((str) => {\n if (str.includes(\"#\")) {\n return str.slice(2);\n } else {\n return str.slice(1);\n }\n });\n\n return chordTypes;\n}\n\nfunction transposeSingleChord(chord, num) {\n const index = majorChords.findIndex((validChord) => chord === validChord);\n let transposedIndex = index + num;\n\n if (transposedIndex > 11) {\n transposedIndex -= 12;\n } else if (transposedIndex < 0) {\n transposedIndex += 12;\n }\n\n return majorChords[transposedIndex];\n}\n\nfunction rejoinTransposedChords(majorChords, chordTypes) {\n return (\n majorChords.map((chord, index) => {\n return chord + chordTypes[index];\n })\n );\n}",[161],"ef904dda-0a0a-11f1-bd59-42dde27851f2","README.md","3be475dc-f74e-11f0-a012-42dde27851f2",["D",1771117751021],8,"# chordTransposer\n\nhttps://chordtransposer.val.run\n\njust enter space-separated valid chords (case insensitive) and the number of\nhalf-steps to transpose by (`-11` – `11`). it does not accept flat chords at the\nmoment so you have to convert it to sharp chords first, sorry.\n\nsometimes i just want to enter four chords and transpose it but have found no\ntools that simply does this so i made it myself.",[170],"249908c6-0bcf-11f1-9219-42dde27851f2","1fd87722-0bcf-11f1-b851-42dde27851f2",109,["D",1771311972522],1,"directory",[42],"ef904a24-0a0a-11f1-bd59-42dde27851f2","archive","019c5ed8-2aeb-7558-9bec-927ee190a569",["D",1771117751021],[184],"pulls","branches",2,"forks","envVars",{"_196":62,"_198":62},"connections",{"_196":62,"_197":62},"count","unfilledCount","emptyCount",{"_42":183,"_32":184,"_30":185,"_137":-5,"_40":41,"_39":145,"_138":58,"_37":250,"_13":62,"_33":181,"_34":-5,"_24":25,"_141":-5,"_210":251,"_27":252},{"_42":243,"_32":244,"_30":245,"_137":185,"_40":41,"_39":145,"_138":58,"_37":246,"_13":62,"_33":166,"_34":247,"_24":25,"_141":-5,"_210":248,"_27":249},{"_42":236,"_32":237,"_30":238,"_137":185,"_40":41,"_39":145,"_138":58,"_37":239,"_13":62,"_33":20,"_34":240,"_24":25,"_141":-5,"_210":241,"_27":242},{"_42":176,"_32":42,"_30":177,"_137":-5,"_40":41,"_39":178,"_138":58,"_37":233,"_13":180,"_33":181,"_34":-5,"_24":25,"_141":-5,"_210":234,"_27":235},{"_42":225,"_32":153,"_30":226,"_137":177,"_40":41,"_39":227,"_138":58,"_37":228,"_13":229,"_33":20,"_34":230,"_24":25,"_141":-5,"_210":231,"_27":232},{"_42":169,"_32":170,"_30":171,"_137":-5,"_40":41,"_39":145,"_138":58,"_37":222,"_13":173,"_33":20,"_34":174,"_24":25,"_141":-5,"_210":223,"_27":224},{"_42":160,"_32":161,"_30":162,"_137":-5,"_40":41,"_39":163,"_138":58,"_37":219,"_13":165,"_33":166,"_34":167,"_24":25,"_141":-5,"_210":220,"_27":221},{"_42":152,"_32":153,"_30":154,"_137":-5,"_40":41,"_39":155,"_138":58,"_37":216,"_13":157,"_33":20,"_34":158,"_24":25,"_141":-5,"_210":217,"_27":218},{"_42":143,"_32":144,"_30":56,"_137":-5,"_40":41,"_39":145,"_138":58,"_37":213,"_13":147,"_33":148,"_34":149,"_24":25,"_141":150,"_210":214,"_27":215},{"_42":136,"_32":28,"_30":31,"_137":-5,"_40":41,"_39":14,"_138":25,"_37":209,"_13":140,"_33":20,"_34":36,"_24":25,"_141":-5,"_210":211,"_27":212},["D",1771380327250],"children",[],[28],["D",1771117751021],[],[144],["D",1771312143557],[],[153],["D",1771316316597],[],[161],["D",1771117751021],[],[170],"3bab99b0-0bd0-11f1-86fa-42dde27851f2","2cba8636-0bc2-11f1-86f9-42dde27851f2",115,["D",1771312440706],15,"\n\n\n\n\n\n\n\n\nChord Transposer\n \n

Chord Transposer

🇺🇸 English | 🇮🇩 Bahasa Indonesia

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\n\n",[],[42,153],["D",1771311972522],[203],[42],"ef903ade-0a0a-11f1-bd59-42dde27851f2","styles.css","ef903b74-0a0a-11f1-bd59-42dde27851f2",["D",1771117751021],":root {\n color-scheme: light dark;\n\n /* has to be set on :root to change viewport scrollbar */\n scrollbar-color: light-dark(var(--accent-light), var(--accent-dark))\n light-dark(var(--bg-light), var(--bg-dark));\n}\n\nhtml {\n --bg-light: whitesmoke;\n --accent-light: lightcoral;\n --text-light: slategrey;\n --bg-dark: darkslategray;\n --accent-dark: #916e7f;\n --text-dark: #c3a38a;\n}\n\n* {\n box-sizing: border-box;\n}\n\nbody {\n color: light-dark(var(--text-light), var(--text-dark));\n background-color: light-dark(var(--bg-light), var(--bg-dark));\n max-width: 600px;\n margin: 0 auto;\n line-height: 1.5;\n font-family: monospace;\n}\n\nlabel {\n display: block;\n}\n\ncode {\n border: 1px solid dimgrey;\n border-radius: 3px;\n padding: 3px;\n}",[],[184,237],"ef901bda-0a0a-11f1-bd59-42dde27851f2","chordTransposer.ts","ef901c84-0a0a-11f1-bd59-42dde27851f2",["D",1771117751021],"type MajorChord =\n | \"C\"\n | \"C#\"\n | \"D\"\n | \"D#\"\n | \"E\"\n | \"F\"\n | \"F#\"\n | \"G\"\n | \"G#\"\n | \"A\"\n | \"A#\"\n | \"B\";\n\nconst majorChords: MajorChord[] = [\n \"C\",\n \"C#\",\n \"D\",\n \"D#\",\n \"E\",\n \"F\",\n \"F#\",\n \"G\",\n \"G#\",\n \"A\",\n \"A#\",\n \"B\",\n];\n\nfunction getMajorChords(arr: string[]): string[] {\n const majorChords = arr.map((str) => {\n if (str.includes(\"#\")) {\n return str.slice(0, 2).toUpperCase();\n } else {\n return str.slice(0, 1).toUpperCase();\n }\n });\n\n return majorChords;\n}\n\nfunction getChordTypes(arr: string[]): string[] {\n const chordTypes = arr.map((str) => {\n if (str.includes(\"#\")) {\n return str.slice(2);\n } else {\n return str.slice(1);\n }\n });\n\n return chordTypes;\n}\n\nfunction transpose(chord: MajorChord, num: number) {\n const index = majorChords.findIndex((validChord) => chord === validChord);\n let transposedIndex = index + num;\n\n if (transposedIndex > 11) {\n transposedIndex -= 12;\n } else if (transposedIndex < 0) {\n transposedIndex += 12;\n }\n\n return majorChords[transposedIndex];\n}\n\nfunction rejoinTransposedChords(\n majorChords: MajorChord[],\n chordTypes: string[],\n) {\n return (\n majorChords.map((chord: string, index: number) => {\n return chord + chordTypes[index];\n })\n );\n}\n\nexport {\n getChordTypes,\n getMajorChords,\n type MajorChord,\n majorChords,\n rejoinTransposedChords,\n transpose,\n};",[],[184,244],["D",1771117751021],[200,201],[184],["D",1767259184468],["D",1789498239291],{"_99":98,"_106":102},{"_99":98,"_100":-5,"_101":102,"_18":54,"_103":104,"_105":25},{"_13":88,"_32":89,"_42":41,"_90":43,"_91":-5,"_92":-5,"_93":-5,"_94":-5,"_95":-5,"_96":44,"_97":98},"ctx",{"_81":-5,"_126":291,"_292":293,"_294":295,"_296":25,"_297":25,"_298":25,"_299":58,"_300":-5,"_301":-7,"_302":-7,"_303":62,"_304":25,"_305":25,"_306":-5,"_307":25,"_308":25,"_309":25,"_310":-5},"ENV",{"_262":263,"_264":265,"_266":89,"_267":268,"_269":270,"_271":272,"_273":274,"_275":276,"_277":278,"_279":280,"_281":282,"_283":284,"_285":286,"_287":288,"_289":290},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

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