======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '284'
                                          'artist'  'The Edgar Winter Group'
                                     'text_people'  ''
                                         'release'  'They Only Come Out at Night'
                                           'title'  'They Only Come Out At Night - 10 - Frankenstein'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-2', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['blues rock', 'rock', 'progressive rock', '70s', 'classic rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '95.2'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'They Only Come Out at Night'
'TBPM' (BPM (beats per minute))                     '95.2'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDOR' (Original release time)                      '1973'
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         'They Only Come Out At Night - 10 - Frankenstein'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Edgar Winter Group'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['blues rock', 'rock', 'progressive rock', '70s', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.32 dB'
'TXXX:replaygain_track_peak'                        '0.636467'

========================== row from database ==========================
                                              'id'  1531475
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Global_s __And then came the Synths__ (Tfva&s)/Part1 - Low Volume [128k-320k]/1. The Edgar Winter Group - Frankenstein (1972).mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  284
                                           'genre'  rock-unsorted
                                        'filesize'  9119408
                                           'mtime'  1620382076
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Global_s __And then came the Synths__ (Tfva&s) Part1 Low Volume [128k 320k] 1. (1972) rock unsorted
                                      'tag_artist'  The Edgar Winter Group
                                     'tag_release'  They Only Come Out at Night
                                       'tag_title'  They Only Come Out At Night - 10 - Frankenstein
                                             'bpm'  95.2
                                    'search_title'  'at':5 'come':3 'frankenstein':7 'night':6 'only':2 'out':4 'they':1
                                   'search_artist'  'edgar':2 'group':4 'the':1 'winter':3
                                  'search_release'  'at':5 'come':3 'night':6 'only':2 'out':4 'they':1
                                     'search_rest'  '1':18,19 '128k':14,15 '1972':20,21 '320k':16,17 'and':3 'came':5 'global':1 'low':12 'part1':11 'rock':22 's':2,9 'synths':7 'tfva':8 'tfvas':10 'the':6 'then':4 'unsorted':23 'volume':13
                                    'search_combo'  '1':35,36 '128k':31,32 '1972':37,38 '320k':33,34 'and':20 'at':5A,16C 'came':22 'come':3A,14C 'edgar':9B 'frankenstein':7A 'global':18 'group':11B 'low':29 'night':6A,17C 'only':2A,13C 'out':4A,15C 'part1':28 'rock':39 's':19,26 'synths':24 'tfva':25 'tfvas':27 'the':8B,23 'then':21 'they':1A,12C 'unsorted':40 'volume':30 'winter':10B
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['blues rock', 'rock', 'progressive rock', '70s', 'classic rock']
                                        'tag_date'  1973
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620382075.6017098  (2021-05-07 12:07:55)
                             'size'  9119408