======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '202'
                                          'artist'  'Limeliters'
                                     'text_people'  ''
                                         'release'  "Through Children's Eyes"
                                           'title'  'Lollipop Tree'
                                           'quals'  ("['Q-JZFKS-1', 'Q-OLDST-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'q-syn-1', "
 "'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', "
 "'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['folk', '60s', 'male vocalists', 'breaking bad']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '143.314'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:{\x18\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x18\x00\x00')
'PRIV:PeakValue:¡\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xa1\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     "Through Children's Eyes"
'TBPM' (BPM (beats per minute))                     '143.314'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TIT2' (Title/songname/content description)         'Lollipop Tree'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Limeliters'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['folk', '60s', 'male vocalists', 'breaking bad']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.95 dB'
'TXXX:replaygain_track_peak'                        '0.388025'

========================== row from database ==========================
                                              'id'  735792
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/The Limeliters - Lollipop Tree.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  202
                                           'genre'  set-th-candy
                                        'filesize'  4055687
                                           'mtime'  1620343130
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country sweets The set th candy
                                      'tag_artist'  Limeliters
                                     'tag_release'  Through Children's Eyes
                                       'tag_title'  Lollipop Tree
                                             'bpm'  143.314
                                    'search_title'  'lollipop':1 'tree':2
                                   'search_artist'  'limeliters':1
                                  'search_release'  'children':2 'childrens':4 'eyes':5 's':3 'through':1
                                     'search_rest'  'candy':9 'country':4 'exotica':2 'jazz':1 'oldies':3 'set':7 'sweets':5 'th':8 'the':6
                                    'search_combo'  'candy':17 'children':5C 'childrens':7C 'country':12 'exotica':10 'eyes':8C 'jazz':9 'limeliters':3B 'lollipop':1A 'oldies':11 's':6C 'set':15 'sweets':13 'th':16 'the':14 'through':4C 'tree':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['folk', '60s', 'male vocalists', 'breaking bad']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343129.5125532  (2021-05-07 01:18:49)
                             'size'  4055687