======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '196'
                                          'artist'  'Liz Phair'
                                     'text_people'  ''
                                         'release'  'Exile in Guyville'
                                           'title'  'Never Said'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'alternative', 'rock', 'female vocalists', 'sex']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '111.824'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Exile in Guyville'
'TBPM' (BPM (beats per minute))                     '111.824'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Never Said'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Liz Phair'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'rock', 'female vocalists', 'sex']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.89 dB'
'TXXX:replaygain_track_peak'                        '0.712554'

========================== row from database ==========================
                                              'id'  1298684
                                            'path'  /data/Music/Bulk/00poprockelectronic/Liz Phair/MBZ;#Liz Phair;#Exile in Guyville;#05;#Never Said.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  196
                                           'genre'  ifs-songwriter
                                        'filesize'  4711870
                                           'mtime'  1623433205
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Liz Phair;#Exile Guyville;#05;#Never ifs songwriter
                                      'tag_artist'  Liz Phair
                                     'tag_release'  Exile in Guyville
                                       'tag_title'  Never Said
                                             'bpm'  111.824
                                    'search_title'  'never':1 'said':2
                                   'search_artist'  'liz':1 'phair':2
                                  'search_release'  'exile':1 'guyville':3 'in':2
                                     'search_rest'  '00poprockelectronic':1 '05':11,14 'exile':7,9 'guyville':10,13 'ifs':16 'liz':3,5 'mbz':2,4 'never':12,15 'phair':6,8 'songwriter':17
                                    'search_combo'  '00poprockelectronic':8 '05':18,21 'exile':5C,14,16 'guyville':7C,17,20 'ifs':23 'in':6C 'liz':3B,10,12 'mbz':9,11 'never':1A,19,22 'phair':4B,13,15 'said':2A 'songwriter':24
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'rock', 'female vocalists', 'sex']
                                        'tag_date'  1993
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1623433204.9499013  (2021-06-11 19:40:04)
                             'size'  4711870