======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '311'
                                          'artist'  'Creepy John Thomas'
                                     'text_people'  ''
                                         'release'  'Brother Bat Bone'
                                           'title'  'Down In The Bottom'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues rock', 'hard rock', 'acid rock', 'psychedelic rock', 'psychedelic']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1968'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic'
                                             'bpm'  '143.112'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM::dut'                                         'http://8daysinapril.blogspot'
'COMM:ID3v1 Comment:XXX'                            'http://8daysinapril.blogspot'
'PRIV:AverageLevel:u\x13\x00\x00'                   PRIV(owner='AverageLevel', data=b'u\x13\x00\x00')
'PRIV:PeakValue:È~\x00\x00'                         PRIV(owner='PeakValue', data=b'\xc8~\x00\x00')
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'TALB' (Album/Movie/Show title)                     'Brother Bat Bone'
'TBPM' (BPM (beats per minute))                     '143.112'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-psychedelic'
'TDRC' (Recording time)                             '1968'
'TIT2' (Title/songname/content description)         'Down In The Bottom'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Creepy John Thomas'
'TRCK' (Track number/Position in set)               '1'
'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:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['blues rock', 'hard rock', 'acid rock', 'psychedelic rock', 'psychedelic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.44 dB'
'TXXX:replaygain_track_peak'                        '0.700395'

========================== row from database ==========================
                                              'id'  1414331
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Creepy John Thomas/Creepy John Thomas - Brother Bat Bone (1968)/01 - Down In The Bottom.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  311
                                           'genre'  rock-cppex-psychedelic
                                        'filesize'  7478994
                                           'mtime'  1620736154
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy (1968) 01 rock cppex psychedelic
                                      'tag_artist'  Creepy John Thomas
                                     'tag_release'  Brother Bat Bone
                                       'tag_title'  Down In The Bottom
                                             'bpm'  143.112
                                    'search_title'  'bottom':4 'down':1 'in':2 'the':3
                                   'search_artist'  'creepy':1 'john':2 'thomas':3
                                  'search_release'  'bat':2 'bone':3 'brother':1
                                     'search_rest'  '1968':2,3 'classicprogpsy':1 'cppex':5 'psychedelic':6 'rock':4
                                    'search_combo'  '1968':12,13 'bat':9C 'bone':10C 'bottom':4A 'brother':8C 'classicprogpsy':11 'cppex':15 'creepy':5B 'down':1A 'in':2A 'john':6B 'psychedelic':16 'rock':14 'the':3A 'thomas':7B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['blues rock', 'hard rock', 'acid rock', 'psychedelic rock', 'psychedelic']
                                        'tag_date'  1968
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620736153.782702  (2021-05-11 14:29:13)
                             'size'  7478994