======================== unified (from filesystem) ========================
                                         'bitrate'  '238.227'
                                        'duration'  '159'
                                          'artist'  'Coal Chamber'
                                     'text_people'  'B. Dez Fafara/Miguel Rascon/Mike Cox/Rayna Foss-Rose'
                                         'release'  'The Best of Coal Chamber'
                                           'title'  'One Step [Chop Shop Mix]'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-4', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative metal', 'industrial', 'metal', 'nu metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'eid-metal-nu'
                                             'bpm'  '118'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'The Best of Coal Chamber'
'TBPM' (BPM (beats per minute))                     '118'
'TCOM' (Composer)                                   'B. Dez Fafara/Miguel Rascon/Mike Cox/Rayna Foss-Rose'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-nu'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'One Step [Chop Shop Mix]'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Coal Chamber'
'TPE2' (Band/orchestra/accompaniment)               'Coal Chamber'
'TPUB' (Publisher)                                  'Roadrunner'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['alternative metal', 'industrial', 'metal', 'nu metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.61 dB'
'TXXX:replaygain_track_peak'                        '0.403827'

========================== row from database ==========================
                                              'id'  1397992
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Coal Chamber/The Best of Coal Chamber/Coal Chamber-The Best of Coal Chamber-One Step [Chop Shop Mix].mp3
                                         'working'  None
                                         'bitrate'  238
                                    'duration_sec'  159
                                           'genre'  eid-metal-nu
                                        'filesize'  4764753
                                           'mtime'  1620311071
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal eid metal nu
                                      'tag_artist'  Coal Chamber
                                     'tag_release'  The Best of Coal Chamber
                                       'tag_title'  One Step [Chop Shop Mix]
                                             'bpm'  118.0
                                    'search_title'  'chop':3,4 'mix':6,7 'one':1 'shop':5 'step':2
                                   'search_artist'  'chamber':2 'coal':1
                                  'search_release'  'best':2 'chamber':5 'coal':4 'of':3 'the':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'eid':3 'metal':4 'nu':5
                                    'search_combo'  '00dwimp':15 '00metal':16 'best':11C 'chamber':9B,14C 'chop':3A,4A 'coal':8B,13C 'eid':17 'metal':18 'mix':6A,7A 'nu':19 'of':12C 'one':1A 'shop':5A 'step':2A 'the':10C
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-4', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['alternative metal', 'industrial', 'metal', 'nu metal']
                                        'tag_date'  2004
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620311071.240922  (2021-05-06 16:24:31)
                             'size'  4764753