======================== unified (from filesystem) ========================
                                         'bitrate'  '191.966'
                                        'duration'  '145'
                                          'artist'  'Gerry & The Pacemakers'
                                     'text_people'  ''
                                         'release'  'Great Jukebox Favourites'
                                           'title'  "You'll Never Walk Alone"
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['60s', 'oldies', 'merseybeat', 'british', 'british invasion', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '200'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '139.948'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Great Jukebox Favourites'
'TBPM' (BPM (beats per minute))                     '139.948'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         "You'll Never Walk Alone"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Gerry & The Pacemakers'
'TRCK' (Track number/Position in set)               '200'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['60s', 'oldies', 'merseybeat', 'british', 'british invasion', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.00 dB'
'TXXX:replaygain_track_peak'                        '0.598002'

========================== row from database ==========================
                                              'id'  1507245
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Gerry !26 The Pacemakers-Hits of the 60_s - Vol 1-21-You_ll Never Walk Alone.mp3
                                         'working'  None
                                         'bitrate'  191
                                    'duration_sec'  145
                                           'genre'  rock-cppex
                                        'filesize'  3501199
                                           'mtime'  1620737418
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] !26 Hits of the 60_s Vol 1 21 You_ll rock cppex
                                      'tag_artist'  Gerry & The Pacemakers
                                     'tag_release'  Great Jukebox Favourites
                                       'tag_title'  You'll Never Walk Alone
                                             'bpm'  139.948
                                    'search_title'  'alone':6 'll':2 'never':4 'walk':5 'you':1 'youll':3
                                   'search_artist'  'gerry':1 'pacemakers':3 'the':2
                                  'search_release'  'favourites':3 'great':1 'jukebox':2
                                     'search_rest'  '00poprockelectronic':1 '1':14 '21':15 '26':7 '60':11 'cppex':19 'files':5,6 'hits':8 'll':17 'loose':3,4 'of':9 'rock':18 's':12 'the':10 'unsorted':2 'vol':13 'you':16
                                    'search_combo'  '00poprockelectronic':13 '1':26 '21':27 '26':19 '60':23 'alone':6A 'cppex':31 'favourites':12C 'files':17,18 'gerry':7B 'great':10C 'hits':20 'jukebox':11C 'll':2A,29 'loose':15,16 'never':4A 'of':21 'pacemakers':9B 'rock':30 's':24 'the':8B,22 'unsorted':14 'vol':25 'walk':5A 'you':1A,28 'youll':3A
                                    'tag_tracknum'  200
                                      'num_images'  0
                                             'key'  9A
                                           '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-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['60s', 'oldies', 'merseybeat', 'british', 'british invasion', 'classic rock']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737418.451556  (2021-05-11 14:50:18)
                             'size'  3501199