<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '231.947'
                                        'duration'  '212'
                                          'artist'  'Celldweller'
                                     'text_people'  ''
                                         'release'  'The Beta Cessions CD1'
                                           'title'  'Stay With Me (Unlikely) [Detroit 2000]'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['industrial metal', 'industrial', 'industrial rock', 'rock', 'electronic', "
 "'fistkrankping']")
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '133.491'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382dae80>

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'TALB' (Album/Movie/Show title)                     'The Beta Cessions CD1'
'TBPM' (BPM (beats per minute))                     '133.491'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDRC' (Recording time)                             '2005'
'TENC' (Encoded by)                                 'c1oUd'
'TIT2' (Title/songname/content description)         'Stay With Me (Unlikely) [Detroit 2000]'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Celldweller'
'TPOS' (Part of a set)                              '1/2'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['industrial metal',
 'industrial',
 'industrial rock',
 'rock',
 'electronic',
 'fistkrankping']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.39 dB'
'TXXX:replaygain_track_peak'                        '0.506253'

========================== row from database ==========================
                                              'id'  1279094
                                            'path'  /data/Music/Bulk/00dwimp/Celldweller/The Beta Cessions/Celldweller - 04 - Stay With Me (Unlikely) [Detroit 2000].mp3
                                         'working'  None
                                         'bitrate'  232
                                    'duration_sec'  212
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  6237915
                                           'mtime'  1620296546
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 04 eid ebm or industrial or darkwave
                                      'tag_artist'  Celldweller
                                     'tag_release'  The Beta Cessions CD1
                                       'tag_title'  Stay With Me (Unlikely) [Detroit 2000]
                                             'bpm'  133.491
                                    'search_title'  '2000':8,9 'detroit':6,7 'me':3 'stay':1 'unlikely':4,5 'with':2
                                   'search_artist'  'celldweller':1
                                  'search_release'  'beta':2 'cd1':4 'cessions':3 'the':1
                                     'search_rest'  '00dwimp':1 'darkwave':6 'ebm':3 'eid':2 'industrial':5 'or':4
                                    'search_combo'  '00dwimp':15 '2000':8A,9A 'beta':12C 'cd1':14C 'celldweller':10B 'cessions':13C 'darkwave':20 'detroit':6A,7A 'ebm':17 'eid':16 'industrial':19 'me':3A 'or':18 'stay':1A 'the':11C 'unlikely':4A,5A 'with':2A
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['industrial metal', 'industrial', 'industrial rock', 'rock', 'electronic', 'fistkrankping']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620296546.0343883  (2021-05-06 12:22:26)
                             'size'  6237915