======================== unified (from filesystem) ========================
                                         'bitrate'  '229.84'
                                        'duration'  '235'
                                          'artist'  'Reverend Horton Heat'
                                     'text_people'  ''
                                         'release'  'spend a night in the box'
                                           'title'  'the party in your head'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['punk rock', 'psychobilly', 'punk', 'rockabilly', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-rockabilly or psychobilly'
                                             'bpm'  '111.763'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'spend a night in the box'
'TBPM' (BPM (beats per minute))                     '111.763'
'TCON' (Content type, a.k.a. Genre)                 'rock-rockabilly or psychobilly'
'TDRC' (Recording time)                             '2000'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'the party in your head'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Reverend Horton Heat'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['punk rock', 'psychobilly', 'punk', 'rockabilly', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.25 dB'
'TXXX:replaygain_track_peak'                        '0.404311'

========================== row from database ==========================
                                              'id'  1329414
                                            'path'  /data/Music/Bulk/00poprockelectronic/musica/Reverend Horton Heat/spend a night in the box/14 - the party in your head.mp3
                                         'working'  None
                                         'bitrate'  229
                                    'duration_sec'  235
                                           'genre'  rock-rockabilly or psychobilly
                                        'filesize'  6773253
                                           'mtime'  1620526720
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic musica 14 rock rockabilly psychobilly
                                      'tag_artist'  Reverend Horton Heat
                                     'tag_release'  spend a night in the box
                                       'tag_title'  the party in your head
                                             'bpm'  111.763
                                    'search_title'  'head':5 'in':3 'party':2 'the':1 'your':4
                                   'search_artist'  'heat':3 'horton':2 'reverend':1
                                  'search_release'  'a':2 'box':6 'in':4 'night':3 'spend':1 'the':5
                                     'search_rest'  '00poprockelectronic':1 'musica':2 'psychobilly':5 'rock':3 'rockabilly':4
                                    'search_combo'  '00poprockelectronic':15 'a':10C 'box':14C 'head':5A 'heat':8B 'horton':7B 'in':3A,12C 'musica':16 'night':11C 'party':2A 'psychobilly':19 'reverend':6B 'rock':17 'rockabilly':18 'spend':9C 'the':1A,13C 'your':4A
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['punk rock', 'psychobilly', 'punk', 'rockabilly', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526720.0961196  (2021-05-09 04:18:40)
                             'size'  6773253