======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '132'
                                          'artist'  'Wanda Jackson'
                                     'text_people'  ''
                                         'release'  "Queen of Rockabilly: The Very Best of the Rock 'n' Roll Years"
                                           'title'  'Mean Mean Man'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'country', 'female vocalists', 'rockabilly', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '30'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-rockabilly or psychobilly'
                                             'bpm'  '101.615'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     "Queen of Rockabilly: The Very Best of the Rock 'n' Roll Years"
'TBPM' (BPM (beats per minute))                     '101.615'
'TCON' (Content type, a.k.a. Genre)                 'rock-rockabilly or psychobilly'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Mean Mean Man'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Wanda Jackson'
'TPE2' (Band/orchestra/accompaniment)               'Wanda Jackson'
'TRCK' (Track number/Position in set)               '2/30'
'TXXX:Encoder'                                      'Lame 3.98.4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rock and roll', 'country', 'female vocalists', 'rockabilly', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.80 dB'
'TXXX:replaygain_track_peak'                        '0.350769'

========================== row from database ==========================
                                              'id'  1533863
                                            'path'  /data/Music/Bulk/00poprockelectronic/Wanda Jackson/Queen of Rockabilly_ The Very Best of the Rock _n_ Roll Years/02 Mean Mean Man.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  132
                                           'genre'  rock-rockabilly or psychobilly
                                        'filesize'  5363554
                                           'mtime'  1620525993
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Rockabilly_ _n_ 02 rock rockabilly or psychobilly
                                      'tag_artist'  Wanda Jackson
                                     'tag_release'  Queen of Rockabilly: The Very Best of the Rock 'n' Roll Years
                                       'tag_title'  Mean Mean Man
                                             'bpm'  101.615
                                    'search_title'  'man':2 'mean':1
                                   'search_artist'  'jackson':2 'wanda':1
                                  'search_release'  'best':7 'n':9,10 'of':2 'queen':1 'rock':8 'rockabilly':3,4 'roll':11 'the':5 'very':6 'years':12
                                     'search_rest'  '00poprockelectronic':1 'n':3 'or':6 'psychobilly':7 'rock':4 'rockabilly':2,5
                                    'search_combo'  '00poprockelectronic':17 'best':11C 'jackson':4B 'man':2A 'mean':1A 'n':13C,14C,19 'of':6C 'or':22 'psychobilly':23 'queen':5C 'rock':12C,20 'rockabilly':7C,8C,18,21 'roll':15C 'the':9C 'very':10C 'wanda':3B 'years':16C
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  12B
                                           '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-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'country', 'female vocalists', 'rockabilly', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525993.11689  (2021-05-09 04:06:33)
                             'size'  5363554