======================== unified (from filesystem) ========================
                                         'bitrate'  '181.078'
                                        'duration'  '189'
                                          'artist'  'Laura Marling'
                                     'text_people'  ''
                                         'release'  'Alas I Cannot Swim'
                                           'title'  'Night Terror'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', '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-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'acoustic', 'female vocalists', 'folk', 'singer songwriter']"
                                     'discogstags'  ("['rock', 'folk, world, & country', 'folk rock', 'acoustic', 'pop rock', "
 "'folk', 'indie rock']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '134.288'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Alas I Cannot Swim'
'TBPM' (BPM (beats per minute))                     '134.288'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Night Terror'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Laura Marling'
'TRCK' (Track number/Position in set)               '9'
'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:discogstags'                                  ['rock',
 'folk, world, & country',
 'folk rock',
 'acoustic',
 'pop rock',
 'folk',
 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'female vocalists', 'folk', 'singer songwriter']
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.47 dB'
'TXXX:replaygain_track_peak'                        '0.441253'

========================== row from database ==========================
                                              'id'  186915
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Laura Marling/Laura Marling_Alas I Cannot Swim/09 Night Terror.mp3
                                         'working'  None
                                         'bitrate'  181
                                    'duration_sec'  189
                                           'genre'  ifs-songwriter
                                        'filesize'  4291053
                                           'mtime'  1636136226
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Marling_Alas 09 ifs songwriter
                                      'tag_artist'  Laura Marling
                                     'tag_release'  Alas I Cannot Swim
                                       'tag_title'  Night Terror
                                             'bpm'  134.288
                                    'search_title'  'night':1 'terror':2
                                   'search_artist'  'laura':1 'marling':2
                                  'search_release'  'alas':1 'cannot':3 'i':2 'swim':4
                                     'search_rest'  '00singer':1 'alas':5 'eos':3 'ifs':6 'marling':4 'songwriter':2
                                    'search_combo'  '00singer':9 'alas':5C,13 'cannot':7C 'eos':11 'i':6C 'ifs':14 'laura':3B 'marling':4B,12 'night':1A 'songwriter':10 'swim':8C 'terror':2A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  2008
                                     'discogstags'  ['rock', 'folk, world, & country', 'folk rock', 'acoustic', 'pop rock', 'folk', 'indie rock']

============================== file details ==============================
                                           'mtime'  1636136225.9991672  (2021-11-05 19:17:05)
                             'size'  4291053