======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '197'
                                          'artist'  'Skunk Anansie'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  '100 ways to be a good girl'
                                           'quals'  ("['Q-HAP-1', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'alternative', 'female vocalists', 'british', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'eid-unsorted;rock-gr-alt'
                                             'bpm'  '138.040'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '138.040'
'TCON' (Content type, a.k.a. Genre)                 ['eid-unsorted', 'rock-gr-alt']
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         '100 ways to be a good girl'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Skunk Anansie'
'TXXX:Mp3gain_minmax'                               '064,188'
'TXXX:Mp3gain_undo'                                 '+004,+004,N'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['alternative rock', 'alternative', 'female vocalists', 'british', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.20 dB'
'TXXX:replaygain_track_peak'                        '0.560885'

========================== row from database ==========================
                                              'id'  1299454
                                            'path'  /data/Music/Bulk/00poprockelectronic/Slayer/skunk anansie - stoosh/skunk anansie - 100 ways to be a good girl.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  197
                                           'genre'  eid-unsorted;rock-gr-alt
                                        'filesize'  3167950
                                           'mtime'  1620521316
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Slayer skunk anansie stoosh skunk anansie eid unsorted;rock gr alt
                                      'tag_artist'  Skunk Anansie
                                     'tag_release'  None
                                       'tag_title'  100 ways to be a good girl
                                             'bpm'  138.04
                                    'search_title'  '100':1 'a':5 'be':4 'girl':7 'good':6 'to':3 'ways':2
                                   'search_artist'  'anansie':2 'skunk':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'alt':12 'anansie':4 'eid':6 'gr':11 'rock':8,10 'skunk':3 'slayer':2 'stoosh':5 'unsorted':7,9
                                    'search_combo'  '00poprockelectronic':10 '100':1A 'a':5A 'alt':21 'anansie':9B,13 'be':4A 'eid':15 'girl':7A 'good':6A 'gr':20 'rock':17,19 'skunk':8B,12 'slayer':11 'stoosh':14 'to':3A 'unsorted':16,18 'ways':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['alternative rock', 'alternative', 'female vocalists', 'british', 'rock']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620521315.5198004  (2021-05-09 02:48:35)
                             'size'  3167950