======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '282'
                                          'artist'  'Mugison'
                                     'text_people'  ''
                                         'release'  'Niceland'
                                           'title'  'Gráturnar'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'icelandic', 'electronic', 'experimental', 'singer songwriter']"
                                     'discogstags'  "['electronic', 'leftfield', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  '22'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '143.7'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Niceland'
'TBPM' (BPM (beats per minute))                     '143.7'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Gráturnar'
'TKEY' (Initial key)                                '12A'
'TLEN' (Length)                                     '282148'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Mugison'
'TPE2' (Band/orchestra/accompaniment)               'Mugison'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '18/22'
'TSO2'                                              'Mugison'
'TSOP' (Performer sort order)                       'Mugison'
'TXXX:ASIN'                                         'B0002LNLBC'
'TXXX:Artists'                                      'Mugison'
'TXXX:MusicBrainz Album Artist Id'                  '3af5a722-4e32-4a57-81a8-b5449c79504e'
'TXXX:MusicBrainz Album Id'                         '30685794-2f67-412d-bf87-29768e65689b'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '3af5a722-4e32-4a57-81a8-b5449c79504e'
'TXXX:MusicBrainz Release Group Id'                 '3676d29d-f2df-34cd-a2e5-69705df3fd66'
'TXXX:MusicBrainz Release Track Id'                 'c19c4080-0a87-3e38-b333-31b84c394c45'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'leftfield', 'experimental']
'TXXX:lastfmtags'                                   ['indie', 'icelandic', 'electronic', 'experimental', 'singer songwriter']
'TXXX:originalyear'                                 '2004'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.42 dB'
'TXXX:replaygain_track_peak'                        '0.770722'
'TXXX:tracknum'                                     '18'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'01a4eec3-f0c5-4402-b813-e5d35c3b9f3f')

========================== row from database ==========================
                                              'id'  1248845
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Mugison/Niceland/Mugison - 18 - Gráturnar.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  282
                                           'genre'  ifs-songwriter
                                        'filesize'  4554892
                                           'mtime'  1623435795
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 18 ifs songwriter
                                      'tag_artist'  Mugison
                                     'tag_release'  Niceland
                                       'tag_title'  Gráturnar
                                             'bpm'  143.7
                                    'search_title'  'graturnar':1,2
                                   'search_artist'  'mugison':1
                                  'search_release'  'niceland':1
                                     'search_rest'  '00singer':1 '18':4 'eos':3 'ifs':5 'songwriter':2
                                    'search_combo'  '00singer':5 '18':8 'eos':7 'graturnar':1A,2A 'ifs':9 'mugison':3B 'niceland':4C 'songwriter':6
                                    'tag_tracknum'  18
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'icelandic', 'electronic', 'experimental', 'singer songwriter']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic', 'leftfield', 'experimental']

============================== file details ==============================
                                           'mtime'  1623435795.3663332  (2021-06-11 20:23:15)
                             'size'  4554892