======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '301'
                                          'artist'  'Tori Amos'
                                     'text_people'  ''
                                         'release'  'Little Earthquakes'
                                           'title'  'China'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'Q-PLAY-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-3', "
 "'q-chart-4', 'q-drums-1', 'q-other-2', 'q-vocals-4', 'q-mixbeat-1', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['90s', 'piano', 'female vocalists', 'alternative', 'singer songwriter']"
                                     'discogstags'  "['rock', 'alternative rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '143.213'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Little Earthquakes'
'TBPM' (BPM (beats per minute))                     '143.213'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDRC' (Recording time)                             '1992'
'TIT2' (Title/songname/content description)         'China'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tori Amos'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'alternative rock']
'TXXX:lastfmtags'                                   ['90s', 'piano', 'female vocalists', 'alternative', 'singer songwriter']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.50 dB'
'TXXX:replaygain_track_peak'                        '0.580950'

========================== row from database ==========================
                                              'id'  1365680
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/00songwriter-eos/Tori Amos/Little Earthquakes/07 China.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  301
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  7243229
                                           'mtime'  1628355564
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 00songwriter eos 07 ifs songwriter eos
                                      'tag_artist'  Tori Amos
                                     'tag_release'  Little Earthquakes
                                       'tag_title'  China
                                             'bpm'  143.213
                                    'search_title'  'china':1
                                   'search_artist'  'amos':2 'tori':1
                                  'search_release'  'earthquakes':2 'little':1
                                     'search_rest'  '00singer':1 '00songwriter':4 'eos':3 'ifs':5 'songwriter':2
                                    'search_combo'  '00singer':6 '00songwriter':9 'amos':3B 'china':1A 'earthquakes':5C 'eos':8 'ifs':10 'little':4C 'songwriter':7 'tori':2B
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-2', 'q-grit-3']
                                      'lastfmtags'  ['90s', 'piano', 'female vocalists', 'alternative', 'singer songwriter']
                                        'tag_date'  1992
                                     'discogstags'  ['rock', 'alternative rock']

============================== file details ==============================
                                           'mtime'  1628355563.820646  (2021-08-07 18:59:23)
                             'size'  7243229