======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '175'
                                          'artist'  'Suomen Talvisota 1939-1940'
                                     'text_people'  ''
                                         'release'  'Underground-rock'
                                           'title'  'Rock on rajaton riemu'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['underground', 'love records', 'classic rock', 'finnish', 'rock']"
                                     'discogstags'  "['rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '16'
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'loc-eur-northern-finland'
                                             'bpm'  '109'
                                             'key'  '6B'
                                        'acoustid'  '0d20aa5d-d4c8-4710-98c6-a36a9e712134'
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Underground-rock'
'TBPM' (BPM (beats per minute))                     '109'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-northern-finland'
'TDOR' (Original release time)                      '1970'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'Rock on rajaton riemu'
'TKEY' (Initial key)                                '6B'
'TMED' (Media type)                                 '12" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'Suomen Talvisota 1939-1940'
'TPE2' (Band/orchestra/accompaniment)               'Suomen Talvisota 1939-1940'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Love Records'
'TRCK' (Track number/Position in set)               '9/16'
'TSO2'                                              'Suomen Talvisota 1939-1940'
'TSOP' (Performer sort order)                       'Suomen Talvisota 1939-1940'
'TXXX:Acoustid Id'                                  '0d20aa5d-d4c8-4710-98c6-a36a9e712134'
'TXXX:Artists'                                      'Suomen Talvisota 1939-1940'
'TXXX:BARCODE'                                      '0602527607658'
'TXXX:CATALOGNUMBER'                                'LRLP 11'
'TXXX:MusicBrainz Album Artist Id'                  '8b3c2c54-6172-486a-b3a2-4297b580d94a'
'TXXX:MusicBrainz Album Id'                         'd4857af9-2975-47d2-8b48-360d47c81eb5'
'TXXX:MusicBrainz Album Release Country'            'FI'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '8b3c2c54-6172-486a-b3a2-4297b580d94a'
'TXXX:MusicBrainz Release Group Id'                 '6eda2cc2-9f36-3ac1-b980-6db28ca4628d'
'TXXX:MusicBrainz Release Track Id'                 'e3a75acf-49c5-4cb4-884d-526289a74786'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'classic rock']
'TXXX:lastfmtags'                                   ['underground', 'love records', 'classic rock', 'finnish', 'rock']
'TXXX:originalyear'                                 '1970'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.21 dB'
'TXXX:replaygain_track_peak'                        '0.542808'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'8d4af636-bf37-4b22-ad47-9471f95fc591')

========================== row from database ==========================
                                              'id'  1490656
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00scandinavia/M.A. Numminen/1970 - Suomen Talvisota 1939-1940 - Underground-Rock (Love) [128k]/09 Rock On Rajaton Riemu.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  175
                                           'genre'  loc-eur-northern-finland
                                        'filesize'  2806802
                                           'mtime'  1621629435
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00scandinavia M.A. Numminen 1970 (Love) [128k] 09 On Rajaton Riemu loc eur northern finland
                                      'tag_artist'  Suomen Talvisota 1939-1940
                                     'tag_release'  Underground-rock
                                       'tag_title'  Rock on rajaton riemu
                                             'bpm'  109.0
                                    'search_title'  'on':2 'rajaton':3 'riemu':4 'rock':1
                                   'search_artist'  '1939':3 '19391940':5 '1940':4 'suomen':1 'talvisota':2
                                  'search_release'  'rock':2 'underground':1 'undergroundrock':3
                                     'search_rest'  '00mid':1 '00scandinavia':4 '128k':12,13 '1970':9 'a':6 'eur':18 'europe':3 'finland':20 'loc':17 'love':10,11 'm':5 'ma':7 'north':2 'northern':19 'numminen':8 'on':14 'rajaton':15 'riemu':16
                                    'search_combo'  '00mid':13 '00scandinavia':16 '128k':24,25 '1939':7B '19391940':9B '1940':8B '1970':21 'a':18 'eur':30 'europe':15 'finland':32 'loc':29 'love':22,23 'm':17 'ma':19 'north':14 'northern':31 'numminen':20 'on':2A,26 'rajaton':3A,27 'riemu':4A,28 'rock':1A,11C 'suomen':5B 'talvisota':6B 'underground':10C 'undergroundrock':12C
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['underground', 'love records', 'classic rock', 'finnish', 'rock']
                                        'tag_date'  1970
                                     'discogstags'  ['rock', 'classic rock']

============================== file details ==============================
                                           'mtime'  1621629435.2314374  (2021-05-21 22:37:15)
                             'size'  2806802