======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '251'
                                          'artist'  "Janet's Novelty JB"
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Vo-do-do-de-o blues'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-3', 'q-bass-1', 'q-busy-3', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-o-dixiestyle'
                                             'bpm'  '100.306'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '100.306'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-o-dixiestyle'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Vo-do-do-de-o blues'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               "Janet's Novelty JB"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.60 dB'
'TXXX:replaygain_track_peak'                        '0.334357'

========================== row from database ==========================
                                              'id'  1526977
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Dixieland/Janet_s Novelty JB/Vo-do-do-de-o blues.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  251
                                           'genre'  prerock-jb-jazz-o-dixiestyle
                                        'filesize'  5029725
                                           'mtime'  1620528485
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Dixieland Janet_s prerock jb jazz dixiestyle
                                      'tag_artist'  Janet's Novelty JB
                                     'tag_release'  None
                                       'tag_title'  Vo-do-do-de-o blues
                                             'bpm'  100.306
                                    'search_title'  'blues':7 'de':4 'do':2,3 'o':5 'vo':1 'vodododeo':6
                                   'search_artist'  'janet':1 'janets':3 'jb':5 'novelty':4 's':2
                                  'search_release'  
                                     'search_rest'  'country':4 'dixieland':5 'dixiestyle':10 'exotica':2 'janet':6 'jazz':1 'jb':9 'oldies':3 'prerock':8 's':7
                                    'search_combo'  'blues':7A 'country':16 'de':4A 'dixieland':17 'dixiestyle':22 'do':2A,3A 'exotica':14 'janet':8B,18 'janets':10B 'jazz':13 'jb':12B,21 'novelty':11B 'o':5A 'oldies':15 'prerock':20 's':9B,19 'vo':1A 'vodododeo':6A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528484.5413933  (2021-05-09 04:48:04)
                             'size'  5029725