======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '321'
                                          'artist'  'Värttinä'
                                     'text_people'  ''
                                         'release'  'Ilmatar'
                                           'title'  'Itkin'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['female vocalists', 'scandinavian folk', 'finnish', 'folk', 'world']"
                                     'discogstags'  ("['rock', 'folk, world, & country', 'folk rock', 'vocal', 'nordic', "
 "'ethereal', 'acoustic', 'ballad']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '11'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'loc-eur-northern-finland'
                                             'bpm'  '153'
                                             'key'  '8A'
                                        'acoustid'  '3cbb797a-ee61-44a3-b3db-3bb7cf42a868'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Ilmatar'
'TBPM' (BPM (beats per minute))                     '153'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-northern-finland'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2001-07-09'
'TIT2' (Title/songname/content description)         'Itkin'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Värttinä'
'TPE2' (Band/orchestra/accompaniment)               'Värttinä'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Fréa Records'
'TRCK' (Track number/Position in set)               '1/11'
'TSO2'                                              'Värttinä'
'TSOP' (Performer sort order)                       'Värttinä'
'TSRC' (ISRC (international standard recording code))  'DEZ650601332/USBC10000228'
'TXXX:Acoustid Id'                                  '3cbb797a-ee61-44a3-b3db-3bb7cf42a868'
'TXXX:Artists'                                      'Värttinä'
'TXXX:BARCODE'                                      '8712618403327'
'TXXX:CATALOGNUMBER'                                'MWCD 4033'
'TXXX:MusicBrainz Album Artist Id'                  '79c41645-d2bf-4f53-8f17-4be34099eaf3'
'TXXX:MusicBrainz Album Id'                         'de763bb2-544c-3592-a56b-ed0e9e509f1d'
'TXXX:MusicBrainz Album Release Country'            'NL'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '79c41645-d2bf-4f53-8f17-4be34099eaf3'
'TXXX:MusicBrainz Release Group Id'                 '3c83d07d-ecdb-35fb-9111-59e9af9d6b2e'
'TXXX:MusicBrainz Release Track Id'                 '0849b0cc-f60f-3ebe-bf9f-61fa14bb9226'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock',
 'folk, world, & country',
 'folk rock',
 'vocal',
 'nordic',
 'ethereal',
 'acoustic',
 'ballad']
'TXXX:lastfmtags'                                   ['female vocalists', 'scandinavian folk', 'finnish', 'folk', 'world']
'TXXX:originalyear'                                 '2000'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.30 dB'
'TXXX:replaygain_track_peak'                        '0.577852'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'6b21700d-484b-4b11-adc8-59b47cbc8cd0')

========================== row from database ==========================
                                              'id'  1236152
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00scandinavia/Värttinä/Ilmatar/Itkin.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  321
                                           'genre'  loc-eur-northern-finland
                                        'filesize'  7722126
                                           'mtime'  1621629468
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00scandinavia loc eur northern finland
                                      'tag_artist'  Värttinä
                                     'tag_release'  Ilmatar
                                       'tag_title'  Itkin
                                             'bpm'  153.0
                                    'search_title'  'itkin':1
                                   'search_artist'  'varttina':1,2
                                  'search_release'  'ilmatar':1
                                     'search_rest'  '00mid':1 '00scandinavia':4 'eur':6 'europe':3 'finland':8 'loc':5 'north':2 'northern':7
                                    'search_combo'  '00mid':5 '00scandinavia':8 'eur':10 'europe':7 'finland':12 'ilmatar':4C 'itkin':1A 'loc':9 'north':6 'northern':11 'varttina':2B,3B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['female vocalists', 'scandinavian folk', 'finnish', 'folk', 'world']
                                        'tag_date'  2001
                                     'discogstags'  ['rock', 'folk, world, & country', 'folk rock', 'vocal', 'nordic', 'ethereal', 'acoustic', 'ballad']

============================== file details ==============================
                                           'mtime'  1621629467.808178  (2021-05-21 22:37:47)
                             'size'  7722126