======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '384'
                                          'artist'  'Underworld'
                                     'text_people'  ''
                                         'release'  'A Hundred Days Off'
                                           'title'  'Twist'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'Q-PLAY-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-vocals-1', 'q-mixbeat-3', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['electronica', 'dance', 'techno', 'electronic', 'trance']"
                                     'discogstags'  ("['electronic', 'progressive house', 'techno', 'house', 'broken beat', "
 "'downtempo']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno;electronic-th-trance'
                                             'bpm'  '135.004'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'A Hundred Days Off'
'TBPM' (BPM (beats per minute))                     '135.004'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-th-techno', 'electronic-th-trance']
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Twist'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Underworld'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic',
 'progressive house',
 'techno',
 'house',
 'broken beat',
 'downtempo']
'TXXX:lastfmtags'                                   ['electronica', 'dance', 'techno', 'electronic', 'trance']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.65 dB'
'TXXX:replaygain_track_peak'                        '0.627879'

========================== row from database ==========================
                                              'id'  1321915
                                            'path'  /data/Music/Bulk/00poprockelectronic/Underworld/A Hundred Days Off/03 - twist.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  384
                                           'genre'  electronic-th-techno;electronic-th-trance
                                        'filesize'  9224064
                                           'mtime'  1620572448
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 03 twist electronic th techno;electronic th trance
                                      'tag_artist'  Underworld
                                     'tag_release'  A Hundred Days Off
                                       'tag_title'  Twist
                                             'bpm'  135.004
                                    'search_title'  'twist':1
                                   'search_artist'  'underworld':1
                                  'search_release'  'a':1 'days':3 'hundred':2 'off':4
                                     'search_rest'  '00poprockelectronic':1 'electronic':3,6,8 'techno':5,7 'th':4 'trance':9 'twist':2
                                    'search_combo'  '00poprockelectronic':7 'a':3C 'days':5C 'electronic':9,12,14 'hundred':4C 'off':6C 'techno':11,13 'th':10 'trance':15 'twist':1A,8 'underworld':2B
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-3', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-4', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'dance', 'techno', 'electronic', 'trance']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic', 'progressive house', 'techno', 'house', 'broken beat', 'downtempo']

============================== file details ==============================
                                           'mtime'  1620572448.3601878  (2021-05-09 17:00:48)
                             'size'  9224064