======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '173'
                                          'artist'  'Me First and the Gimme Gimmes'
                                     'text_people'  ''
                                         'release'  'Have a Ball'
                                           'title'  'Sweet Caroline'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['punk rock', 'punk covers', 'punk', 'covers', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '143.213'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Have a Ball'
'TBPM' (BPM (beats per minute))                     '143.213'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Sweet Caroline'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Me First and the Gimme Gimmes'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['punk rock', 'punk covers', 'punk', 'covers', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.46 dB'
'TXXX:replaygain_track_peak'                        '0.441886'

========================== row from database ==========================
                                              'id'  1420901
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/Me First And The Gimme Gimmes - Me First and the Gimme Gimme Gimmes/MBZ;#Me First and the Gimme Gimmes;#Have a Ball;#07;#Sweet Caroline.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  173
                                           'genre'  rock-gr-punk
                                        'filesize'  3474516
                                           'mtime'  1622659020
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner And The MBZ;#Me Gimmes;#Have Ball;#07;#Sweet rock gr punk
                                      'tag_artist'  Me First and the Gimme Gimmes
                                     'tag_release'  Have a Ball
                                       'tag_title'  Sweet Caroline
                                             'bpm'  143.213
                                    'search_title'  'caroline':2 'sweet':1
                                   'search_artist'  'and':3 'first':2 'gimme':5 'gimmes':6 'me':1 'the':4
                                  'search_release'  'a':2 'ball':3 'have':1
                                     'search_rest'  '07':16,19 'and':5 'ball':15,18 'garage':2 'gimmes':11,13 'gr':22 'have':12,14 'mbz':7,9 'me':8,10 'punk':1 'rock':21 'stoner':4 'surf':3 'sweet':17,20 'the':6
                                    'search_combo'  '07':27,30 'a':10C 'and':5B,16 'ball':11C,26,29 'caroline':2A 'first':4B 'garage':13 'gimme':7B 'gimmes':8B,22,24 'gr':33 'have':9C,23,25 'mbz':18,20 'me':3B,19,21 'punk':12 'rock':32 'stoner':15 'surf':14 'sweet':1A,28,31 'the':6B,17
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', '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-3']
                                      'lastfmtags'  ['punk rock', 'punk covers', 'punk', 'covers', 'rock']
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659020.0833955  (2021-06-02 20:37:00)
                             'size'  3474516