======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '125'
                                          'artist'  'Liz Phair'
                                     'text_people'  ''
                                         'release'  'Whip-Smart'
                                           'title'  'Chopsticks'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-1', 'q-other-3', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'alternative', 'rock', 'female vocalists', 'sex']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '100.058'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Whip-Smart'
'TBPM' (BPM (beats per minute))                     '100.058'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'Chopsticks'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Liz Phair'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'rock', 'female vocalists', 'sex']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.08 dB'
'TXXX:replaygain_track_peak'                        '0.605488'

========================== row from database ==========================
                                              'id'  1315225
                                            'path'  /data/Music/Bulk/00poprockelectronic/Liz Phair/MBZ;#Liz Phair;#Whip-Smart;#01;#Chopsticks.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  125
                                           'genre'  ifs-songwriter
                                        'filesize'  3020199
                                           'mtime'  1623433198
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Liz Phair;#Whip Smart;#01;#Chopsticks ifs songwriter
                                      'tag_artist'  Liz Phair
                                     'tag_release'  Whip-Smart
                                       'tag_title'  Chopsticks
                                             'bpm'  100.058
                                    'search_title'  'chopsticks':1
                                   'search_artist'  'liz':1 'phair':2
                                  'search_release'  'smart':2 'whip':1 'whipsmart':3
                                     'search_rest'  '00poprockelectronic':1 '01':11,14 'chopsticks':12,15 'ifs':16 'liz':3,5 'mbz':2,4 'phair':6,8 'smart':10,13 'songwriter':17 'whip':7,9
                                    'search_combo'  '00poprockelectronic':7 '01':17,20 'chopsticks':1A,18,21 'ifs':22 'liz':2B,9,11 'mbz':8,10 'phair':3B,12,14 'smart':5C,16,19 'songwriter':23 'whip':4C,13,15 'whipsmart':6C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'rock', 'female vocalists', 'sex']
                                        'tag_date'  1994
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1623433198.4006152  (2021-06-11 19:39:58)
                             'size'  3020199