======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '166'
                                          'artist'  'Spalding Rockwell'
                                     'text_people'  ''
                                         'release'  'Kate'
                                           'title'  'Nina'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-4', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronica', 'electronic', 'electroclash', 'female vocalists', 'electro']"
                                     'discogstags'  "['electronic', 'rock', 'electroclash', 'punk', 'garage rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-we-electroclash'
                                             'bpm'  '101.208'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Kate'
'TBPM' (BPM (beats per minute))                     '101.208'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-we-electroclash', 'electronic-we-electroclash']
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Nina'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Spalding Rockwell'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'rock', 'electroclash', 'punk', 'garage rock']
'TXXX:lastfmtags'                                   ['electronica', 'electronic', 'electroclash', 'female vocalists', 'electro']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.23 dB'
'TXXX:replaygain_track_peak'                        '0.723198'

========================== row from database ==========================
                                              'id'  1285170
                                            'path'  /data/Music/Bulk/00poprockelectronic/00clash/Spalding Rockwell/05.Nina.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  166
                                           'genre'  electronic-we-electroclash
                                        'filesize'  3339773
                                           'mtime'  1620561194
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00clash 05.Nina electronic electroclash
                                      'tag_artist'  Spalding Rockwell
                                     'tag_release'  Kate
                                       'tag_title'  Nina
                                             'bpm'  101.208
                                    'search_title'  'nina':1
                                   'search_artist'  'rockwell':2 'spalding':1
                                  'search_release'  'kate':1
                                     'search_rest'  '00clash':2 '00poprockelectronic':1 '05':3 '05nina':5 'electroclash':7 'electronic':6 'nina':4
                                    'search_combo'  '00clash':6 '00poprockelectronic':5 '05':7 '05nina':9 'electroclash':11 'electronic':10 'kate':4C 'nina':1A,8 'rockwell':3B 'spalding':2B
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-4', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['electronica', 'electronic', 'electroclash', 'female vocalists', 'electro']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic', 'rock', 'electroclash', 'punk', 'garage rock']

============================== file details ==============================
                                           'mtime'  1620561193.5098329  (2021-05-09 13:53:13)
                             'size'  3339773