======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '248'
                                          'artist'  'Aphex Twin'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Expert Knob Twiddlers [05] - V'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', '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-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['draq', 'drjazzmrfunkmusic', 'electric textures']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '116.857'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '116.857'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Expert Knob Twiddlers [05] - V'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Aphex Twin'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['draq', 'drjazzmrfunkmusic', 'electric textures']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-2.64 dB'
'TXXX:replaygain_track_peak'                        '0.598784'

========================== row from database ==========================
                                              'id'  1353491
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Aphex Twin - Expert Knob Twiddlers [05] - Vodka.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  248
                                           'genre'  funk or soul
                                        'filesize'  3979264
                                           'mtime'  1628357949
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Vodka funk or soul
                                      'tag_artist'  Aphex Twin
                                     'tag_release'  None
                                       'tag_title'  Expert Knob Twiddlers [05] - V
                                             'bpm'  116.857
                                    'search_title'  '05':4,5 'expert':1 'knob':2 'twiddlers':3 'v':6
                                   'search_artist'  'aphex':1 'twin':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'funk':8 'loose':3,4 'or':9 'soul':10 'unsorted':2 'vodka':7
                                    'search_combo'  '00poprockelectronic':9 '05':4A,5A 'aphex':7B 'expert':1A 'files':13,14 'funk':16 'knob':2A 'loose':11,12 'or':17 'soul':18 'twiddlers':3A 'twin':8B 'unsorted':10 'v':6A 'vodka':15
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['draq', 'drjazzmrfunkmusic', 'electric textures']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357949.2302814  (2021-08-07 19:39:09)
                             'size'  3979264