======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '201'
                                          'artist'  'The Nomads'
                                     'text_people'  ''
                                         'release'  'Showdown!'
                                           'title'  "Don't Tread One Me"
                                           'quals'  ("['Q-OLDST-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['swedish', 'garage rock', 'garage punk', 'rock', 'garage']"
                                     'discogstags'  "['trance', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '09'
                                      'tracktotal'  ''
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage'
                                             'bpm'  '137.292'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Showdown!'
'TBPM' (BPM (beats per minute))                     '137.292'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-garage'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         "Don't Tread One Me"
'TKEY' (Initial key)                                '1A'
'TLEN' (Length)                                     '201221'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'The Nomads'
'TPE2' (Band/orchestra/accompaniment)               'The Nomads'
'TRCK' (Track number/Position in set)               '09'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['trance', 'electronic']
'TXXX:lastfmtags'                                   ['swedish', 'garage rock', 'garage punk', 'rock', 'garage']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.51 dB'
'TXXX:replaygain_track_peak'                        '0.410693'

========================== row from database ==========================
                                              'id'  1506855
                                            'path'  /data/Music/Bulk/00poprockelectronic/swedish rock/The Nomads - Don_t Tread One Me.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  201
                                           'genre'  rock-gr-garage
                                        'filesize'  3229585
                                           'mtime'  1620392808
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic swedish rock Don_t rock gr garage
                                      'tag_artist'  The Nomads
                                     'tag_release'  Showdown!
                                       'tag_title'  Don't Tread One Me
                                             'bpm'  137.292
                                    'search_title'  'don':1 'dont':3 'me':6 'one':5 't':2 'tread':4
                                   'search_artist'  'nomads':2 'the':1
                                  'search_release'  'showdown':1
                                     'search_rest'  '00poprockelectronic':1 'don':4 'garage':7 'gr':6 'rock':3 'swedish':2 't':5
                                    'search_combo'  '00poprockelectronic':10 'don':1A,13 'dont':3A 'garage':16 'gr':15 'me':6A 'nomads':8B 'one':5A 'rock':12 'showdown':9C 'swedish':11 't':2A,14 'the':7B 'tread':4A
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['swedish', 'garage rock', 'garage punk', 'rock', 'garage']
                                        'tag_date'  1994
                                     'discogstags'  ['trance', 'electronic']

============================== file details ==============================
                                           'mtime'  1620392808.124339  (2021-05-07 15:06:48)
                             'size'  3229585