======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '444'
                                          'artist'  'Sigur Rós'
                                     'text_people'  ''
                                         'release'  'Takk...'
                                           'title'  'Svo hljótt'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'alternative', 'icelandic', 'post rock', 'ambient']"
                                     'discogstags'  "['rock', 'post rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-ambient'
                                             'bpm'  '127.044'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Takk...'
'TBPM' (BPM (beats per minute))                     '127.044'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Svo hljótt'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Sigur Rós'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'post rock']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'icelandic', 'post rock', 'ambient']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.70 dB'
'TXXX:replaygain_track_peak'                        '0.422637'

========================== row from database ==========================
                                              'id'  1282413
                                            'path'  /data/Music/Bulk/00poprockelectronic/Sigur Ros/sigur ros - takk - 10 sorglega.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  444
                                           'genre'  electronic-ambient
                                        'filesize'  8901700
                                           'mtime'  1636911180
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Ros sigur ros takk 10 sorglega electronic ambient
                                      'tag_artist'  Sigur Rós
                                     'tag_release'  Takk...
                                       'tag_title'  Svo hljótt
                                             'bpm'  127.044
                                    'search_title'  'hljott':2,3 'svo':1
                                   'search_artist'  'ros':2,3 'sigur':1
                                  'search_release'  'takk':1,2
                                     'search_rest'  '00poprockelectronic':1 'ambient':7 'electronic':6 'ros':2 'sigur':3 'sorglega':5 'takk':4
                                    'search_combo'  '00poprockelectronic':9 'ambient':15 'electronic':14 'hljott':2A,3A 'ros':5B,6B,10 'sigur':4B,11 'sorglega':13 'svo':1A 'takk':7C,8C,12
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-3', 'q-chart-4', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'icelandic', 'post rock', 'ambient']
                                        'tag_date'  2005
                                     'discogstags'  ['rock', 'post rock']

============================== file details ==============================
                                           'mtime'  1636911180.462688  (2021-11-14 18:33:00)
                             'size'  8901700