======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '267'
                                          'artist'  'Fiona Apple'
                                     'text_people'  ''
                                         'release'  'Extraordinary Machine'
                                           'title'  'Get Him Back'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-4', "
 "'q-chart-3', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative', 'female vocalists', 'piano', 'singer songwriter']"
                                     'discogstags'  "['rock', 'pop rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '123.632'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Extraordinary Machine'
'TBPM' (BPM (beats per minute))                     '123.632'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Get Him Back'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Fiona Apple'
'TRCK' (Track number/Position in set)               '3'
'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', 'pop rock', 'indie rock']
'TXXX:lastfmtags'                                   ['alternative', 'female vocalists', 'piano', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '4'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.96 dB'
'TXXX:replaygain_track_peak'                        '0.620587'

========================== row from database ==========================
                                              'id'  1373096
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/00songwriter-eos/Fiona Apple/Extraordinary Machine (1)/03_Fiona_Apple_Get_Him_Back.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  267
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  5346781
                                           'mtime'  1636401151
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 00songwriter eos (1) 03_Fiona_Apple_Get_Him_Back ifs songwriter eos
                                      'tag_artist'  Fiona Apple
                                     'tag_release'  Extraordinary Machine
                                       'tag_title'  Get Him Back
                                             'bpm'  123.632
                                    'search_title'  'back':3 'get':1 'him':2
                                   'search_artist'  'apple':2 'fiona':1
                                  'search_release'  'extraordinary':1 'machine':2
                                     'search_rest'  '00singer':1 '00songwriter':4 '03':7 '1':5,6 'apple':9 'back':12 'eos':3 'fiona':8 'get':10 'him':11 'ifs':13 'songwriter':2
                                    'search_combo'  '00singer':8 '00songwriter':11 '03':14 '1':12,13 'apple':5B,16 'back':3A,19 'eos':10 'extraordinary':6C 'fiona':4B,15 'get':1A,17 'him':2A,18 'ifs':20 'machine':7C 'songwriter':9
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative', 'female vocalists', 'piano', 'singer songwriter']
                                        'tag_date'  2003
                                     'discogstags'  ['rock', 'pop rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1636401151.3036716  (2021-11-08 20:52:31)
                             'size'  5346781