======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '295'
                                          'artist'  'Jan Akkerman & Kaz Lux'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Guardian Angel'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['netherlands', 'fusion', '70s', 'progressive rock', 'dutch']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early'
                                             'bpm'  '127.7'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '127.7'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-early'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Guardian Angel'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jan Akkerman & Kaz Lux'
'TXXX:Mp3gain_minmax'                               '025,209'
'TXXX:Mp3gain_undo'                                 '+001,+001,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['netherlands', 'fusion', '70s', 'progressive rock', 'dutch']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.42 dB'
'TXXX:replaygain_track_peak'                        '0.823164'

========================== row from database ==========================
                                              'id'  1525186
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Global_s __And then came the Synths__ (Tfva&s)/Part1 - Low Volume [128k-320k]/3. Jan Akkerman & Kaz Lux - Guardian Angel (1977).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  295
                                           'genre'  electronic-experimental-early
                                        'filesize'  7086755
                                           'mtime'  1637328907
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Global_s __And then came the Synths__ (Tfva&s) Part1 Low Volume [128k 320k] 3. (1977) electronic experimental early
                                      'tag_artist'  Jan Akkerman & Kaz Lux
                                     'tag_release'  None
                                       'tag_title'  Guardian Angel
                                             'bpm'  127.7
                                    'search_title'  'angel':2 'guardian':1
                                   'search_artist'  'akkerman':2 'jan':1 'kaz':3 'lux':4
                                  'search_release'  
                                     'search_rest'  '128k':14,15 '1977':20,21 '3':18,19 '320k':16,17 'and':3 'came':5 'early':24 'electronic':22 'experimental':23 'global':1 'low':12 'part1':11 's':2,9 'synths':7 'tfva':8 'tfvas':10 'the':6 'then':4 'volume':13
                                    'search_combo'  '128k':20,21 '1977':26,27 '3':24,25 '320k':22,23 'akkerman':4B 'and':9 'angel':2A 'came':11 'early':30 'electronic':28 'experimental':29 'global':7 'guardian':1A 'jan':3B 'kaz':5B 'low':18 'lux':6B 'part1':17 's':8,15 'synths':13 'tfva':14 'tfvas':16 'the':12 'then':10 'volume':19
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['netherlands', 'fusion', '70s', 'progressive rock', 'dutch']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637328907.2728848  (2021-11-19 14:35:07)
                             'size'  7086755