diff --git a/data/years.json b/data/years.json
index 02326c9..3e56074 100644
--- a/data/years.json
+++ b/data/years.json
@@ -794,15 +794,15 @@
       "mbid": "37e33915-b7e5-4310-bc53-94d17310b26c"
     },
     "Glenn Miller - In the Mood (2006 Remastered Version).mp3": {
-      "year": null,
-      "date": null,
+      "year": 1940,
+      "date": "1940",
       "title": "In the Mood (2006 Remastered Version)",
       "artist": "Glenn Miller",
       "mbid": null
     },
     "Gotye - Somebody That I Used To Know.mp3": {
-      "year": null,
-      "date": null,
+      "year": 2011,
+      "date": "2011",
       "title": "Somebody That I Used To Know",
       "artist": "Gotye, Kimbra",
       "mbid": null
@@ -871,8 +871,8 @@
       "mbid": "78e068ef-72d5-4520-b773-0753534dfa07"
     },
     "Icona Pop - I Love It (feat. Charli XCX).mp3": {
-      "year": null,
-      "date": null,
+      "year": 2012,
+      "date": "2012",
       "title": "I Love It (feat. Charli XCX)",
       "artist": "Icona Pop, Charli xcx",
       "mbid": null
@@ -899,8 +899,8 @@
       "mbid": "b0e1e84f-7b16-47dc-8297-db85a239fb18"
     },
     "JAY Z - Numb  Encore.mp3": {
-      "year": null,
-      "date": null,
+      "year": 2004,
+      "date": "2004",
       "title": "Numb / Encore",
       "artist": "JAY Z, Linkin Park",
       "mbid": null
@@ -913,8 +913,8 @@
       "mbid": "4ac2f246-d285-4e2d-88a0-9dcc6c0e37b0"
     },
     "Jessie J - Price Tag.mp3": {
-      "year": null,
-      "date": null,
+      "year": 2011,
+      "date": "2011",
       "title": "Price Tag",
       "artist": "Jessie J, B.o.B",
       "mbid": null
@@ -976,15 +976,15 @@
       "mbid": "51798a1e-190a-4229-b56a-f2cda0972fdd"
     },
     "Kanye West - Gold Digger.mp3": {
-      "year": null,
-      "date": null,
+      "year": 2005,
+      "date": "2005",
       "title": "Gold Digger",
       "artist": "Kanye West, Jamie Foxx",
       "mbid": null
     },
     "Kaoma - Lambada (Original Version 1989).mp3": {
-      "year": null,
-      "date": null,
+      "year": 1989,
+      "date": "1989",
       "title": "Lambada (Original Version 1989)",
       "artist": "Kaoma",
       "mbid": "281e0ae7-bf5e-4716-8623-9ccabdca7afa"
@@ -1032,8 +1032,8 @@
       "mbid": "44140ecd-ca40-4d45-8c3e-c4df35ca0462"
     },
     "Klaus Lage - 1000 und 1 Nacht (Remastered 2008).mp3": {
-      "year": null,
-      "date": null,
+      "year": 1984,
+      "date": "1984",
       "title": "1000 und 1 Nacht (Remastered 2008)",
       "artist": "Klaus Lage",
       "mbid": null
@@ -1060,8 +1060,8 @@
       "mbid": "47042d5b-3df8-4d01-8b7e-c94d9e18f36e"
     },
     "Lady Gaga - Shallow (Radio Edit).mp3": {
-      "year": null,
-      "date": null,
+      "year": 2018,
+      "date": "2018",
       "title": "Shallow (Radio Edit)",
       "artist": "Lady Gaga, Bradley Cooper",
       "mbid": null
@@ -1165,8 +1165,8 @@
       "mbid": "310c7a8c-aa77-4ade-b9ea-02dee4aec084"
     },
     "Macklemore & Ryan Lewis - Can't Hold Us (feat. Ray Dalton).mp3": {
-      "year": null,
-      "date": null,
+      "year": 2011,
+      "date": "2011",
       "title": "Can't Hold Us (feat. Ray Dalton)",
       "artist": "Macklemore & Ryan Lewis",
       "mbid": null
@@ -1179,15 +1179,15 @@
       "mbid": "e2f73fc3-edf1-4f62-b141-194550376ea6"
     },
     "Madonna - 4 Minutes (feat. Justin Timberlake and Timbaland).mp3": {
-      "year": null,
-      "date": null,
+      "year": 2008,
+      "date": "2008",
       "title": "4 Minutes (feat. Justin Timberlake and Timbaland)",
       "artist": "Madonna",
       "mbid": null
     },
     "Major Lazer - Lean On (feat. MØ & DJ Snake).mp3": {
-      "year": null,
-      "date": null,
+      "year": 2015,
+      "date": "2015",
       "title": "Lean On (feat. MØ & DJ Snake)",
       "artist": "Major Lazer, MØ, DJ Snake",
       "mbid": null
@@ -1207,8 +1207,8 @@
       "mbid": "8621d084-848e-42b7-b909-238ce065f6c3"
     },
     "Mark Forster - Drei Uhr Nachts.mp3": {
-      "year": null,
-      "date": null,
+      "year": 2021,
+      "date": "2021",
       "title": "Drei Uhr Nachts",
       "artist": "Mark Forster, LEA",
       "mbid": null
@@ -1221,8 +1221,8 @@
       "mbid": "bd45a28c-ad2a-4d33-a631-2fdc5d4e2c5c"
     },
     "Mark Ronson - Valerie (feat. Amy Winehouse) (Version Revisited).mp3": {
-      "year": null,
-      "date": null,
+      "year": 2006,
+      "date": "2006",
       "title": "Valerie (feat. Amy Winehouse) (Version Revisited)",
       "artist": "Mark Ronson, Amy Winehouse",
       "mbid": null
@@ -1235,8 +1235,8 @@
       "mbid": "2e6c7eb5-853b-4376-aad1-d21b1793c7b2"
     },
     "Maroon 5 - Moves Like Jagger (Studio Recording From The Voice Performance).mp3": {
-      "year": null,
-      "date": null,
+      "year": 2010,
+      "date": "2010",
       "title": "Moves Like Jagger (Studio Recording From The Voice Performance)",
       "artist": "Maroon 5, Christina Aguilera",
       "mbid": null
@@ -1340,8 +1340,8 @@
       "mbid": "78ea7ea5-a451-4efe-b1fe-840f0697a419"
     },
     "Nelly - Dilemma.mp3": {
-      "year": null,
-      "date": null,
+      "year": 2002,
+      "date": "2002",
       "title": "Dilemma",
       "artist": "Nelly, Kelly Rowland",
       "mbid": null
@@ -1403,8 +1403,8 @@
       "mbid": "d03a0d3b-a3c5-44f4-9af7-34c76ccaedb2"
     },
     "Outkast - Hey Ya! (Radio Mix  Club Mix).mp3": {
-      "year": null,
-      "date": null,
+      "year": 2003,
+      "date": "2003",
       "title": "Hey Ya! (Radio Mix / Club Mix)",
       "artist": "Outkast",
       "mbid": null
@@ -2385,8 +2385,8 @@
       "title": "Without You",
       "artist": "Avicii, Sandro Cavazza",
       "mbid": null,
-      "earliestDate": null,
-      "year": null,
+      "earliestDate": "2017",
+      "year": 2017,
       "error": "No recordings found"
     },
     {
@@ -3868,8 +3868,8 @@
       "title": "Jump Around (LP Version)",
       "artist": "House of Pain",
       "mbid": "f3c80549-9f27-4a6e-a68b-545b0df0f25a",
-      "earliestDate": "2010",
-      "year": 2010,
+      "earliestDate": "1992",
+      "year": 1992,
       "confidence": {
         "mbScore": 100,
         "titleSim": 1,
@@ -4015,8 +4015,8 @@
       "title": "Ring of Fire",
       "artist": "Johnny Cash",
       "mbid": "5611c424-d0db-4e30-bae2-2db6d72177f7",
-      "earliestDate": "1981-04-19",
-      "year": 1981,
+      "earliestDate": "1963",
+      "year": 1963,
       "confidence": {
         "mbScore": 100,
         "titleSim": 1,
@@ -5383,8 +5383,8 @@
       "title": "Wann wird's mal wieder richtig Sommer (Original Mix)",
       "artist": "Rudi Carrell",
       "mbid": null,
-      "earliestDate": null,
-      "year": null,
+      "earliestDate": "1975",
+      "year": 1975,
       "error": "No recordings found"
     },
     {
@@ -5392,8 +5392,8 @@
       "title": "Ain't Nobody",
       "artist": "Rufus, Chaka Khan",
       "mbid": null,
-      "earliestDate": null,
-      "year": null,
+      "earliestDate": "1983",
+      "year": 1983,
       "error": "No recordings found"
     },
     {
@@ -5416,8 +5416,8 @@
       "title": "(What A) Wonderful World  (Mono)",
       "artist": "Sam Cooke",
       "mbid": null,
-      "earliestDate": null,
-      "year": null,
+      "earliestDate": "1960",
+      "year": 1960,
       "error": "No recordings found"
     },
     {
@@ -5455,8 +5455,8 @@
       "title": "Die Nacht von Freitag auf Montag",
       "artist": "SDP, Sido",
       "mbid": null,
-      "earliestDate": null,
-      "year": null,
+      "earliestDate": "2012",
+      "year": 2012,
       "error": "No recordings found"
     },
     {
@@ -5464,8 +5464,8 @@
       "title": "It Wasn't Me",
       "artist": "Shaggy, Ricardo Ducent",
       "mbid": null,
-      "earliestDate": null,
-      "year": null,
+      "earliestDate": "2000",
+      "year": 2000,
       "error": "No recordings found"
     },
     {
@@ -5473,8 +5473,8 @@
       "title": "Waka Waka (This Time for Africa) [The Official 2010 FIFA World Cup (TM) Song] (feat. Freshlyground) (Single)",
       "artist": "Shakira, Freshlyground",
       "mbid": null,
-      "earliestDate": null,
-      "year": null,
+      "earliestDate": "2010",
+      "year": 2010,
       "error": "No recordings found"
     },
     {
@@ -5482,8 +5482,8 @@
       "title": "Señorita",
       "artist": "Shawn Mendes, Camila Cabello",
       "mbid": null,
-      "earliestDate": null,
-      "year": null,
+      "earliestDate": "2019",
+      "year": 2019,
       "error": "No recordings found"
     },
     {
@@ -5521,8 +5521,8 @@
       "title": "Holding Back the Years (2008 Remaster)",
       "artist": "Simply Red",
       "mbid": null,
-      "earliestDate": null,
-      "year": null,
+      "earliestDate": "1985",
+      "year": 1985,
       "error": "No recordings found"
     },
     {
@@ -5710,8 +5710,8 @@
       "title": "Hangover",
       "artist": "Taio Cruz, Flo Rida",
       "mbid": null,
-      "earliestDate": null,
-      "year": null,
+      "earliestDate": "2011",
+      "year": 2011,
       "error": "No recordings found"
     },
     {
@@ -5764,8 +5764,8 @@
       "title": "Get Back (Remastered 2009)",
       "artist": "The Beatles",
       "mbid": null,
-      "earliestDate": null,
-      "year": null,
+      "earliestDate": "1970",
+      "year": 1970,
       "error": "No recordings found"
     },
     {
@@ -5983,8 +5983,8 @@
       "title": "Bitter Sweet Symphony (Remastered 2016)",
       "artist": "The Verve",
       "mbid": null,
-      "earliestDate": null,
-      "year": null,
+      "earliestDate": "1997",
+      "year": 1997,
       "error": "No recordings found"
     },
     {
@@ -6067,8 +6067,8 @@
       "title": "Durch den Monsun (Radio Mix)",
       "artist": "Tokio Hotel",
       "mbid": null,
-      "earliestDate": null,
-      "year": null,
+      "earliestDate": "2005",
+      "year": 2005,
       "error": "No recordings found"
     },
     {
@@ -6316,8 +6316,8 @@
       "title": "Love Is All Around (From \"Four Weddings And A Funeral\")",
       "artist": "Wet Wet Wet",
       "mbid": null,
-      "earliestDate": null,
-      "year": null,
+      "earliestDate": "1994",
+      "year": 1994,
       "error": "No recordings found"
     },
     {
@@ -6355,8 +6355,8 @@
       "title": "Die guten Zeiten",
       "artist": "Wincent Weiss, Johannes Oerding",
       "mbid": null,
-      "earliestDate": null,
-      "year": null,
+      "earliestDate": "2021",
+      "year": 2021,
       "error": "No recordings found"
     },
     {