======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '411'
                                          'artist'  'The Chemical Brothers'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Where Do I Begin'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'electronica', 'techno', 'electronic', 'big beat']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-bigbeat'
                                             'bpm'  '101.973'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'None'
'COMM:MusicMatch_Preference:eng'                    'None'
'COMM:MusicMatch_Tempo:eng'                         'None'
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'TBPM' (BPM (beats per minute))                     '101.973'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-bigbeat'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Where Do I Begin'
'TKEY' (Initial key)                                '11B'
'TLEN' (Length)                                     '411000'
'TPE1' (Lead performer(s)/Soloist(s))               'The Chemical Brothers'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['dance', 'electronica', 'techno', 'electronic', 'big beat']
'TXXX:q-bass'                                       '3'
'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-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.47 dB'
'TXXX:replaygain_track_peak'                        '0.397649'

========================== row from database ==========================
                                              'id'  1408984
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/The Chemical Brothers - Chemical Brothers/Chemical Brothers - Where Do I Begin.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  411
                                           'genre'  electronic-generic or radio-bigbeat
                                        'filesize'  6580307
                                           'mtime'  1621695895
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat electronic generic or radio bigbeat
                                      'tag_artist'  The Chemical Brothers
                                     'tag_release'  None
                                       'tag_title'  Where Do I Begin
                                             'bpm'  101.973
                                    'search_title'  'begin':4 'do':2 'i':3 'where':1
                                   'search_artist'  'brothers':3 'chemical':2 'the':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'bigbeat':8 'dance':3 'electronic':5 'generic':2 'or':6 'radio':7 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':8 'begin':4A 'bigbeat':15 'brothers':7B 'chemical':6B 'dance':10 'do':2A 'electronic':12 'generic':9 'i':3A 'or':13 'radio':14 'the':5B 'trapbeat':11 'where':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'electronica', 'techno', 'electronic', 'big beat']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695895.1816003  (2021-05-22 17:04:55)
                             'size'  6580307