======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '165'
                                          'artist'  'Zea'
                                     'text_people'  ''
                                         'release'  'Insert Parallel Universe'
                                           'title'  'Click Click 6002'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'indietronica', 'all', 'electronic', 'dutch']"
                                     'discogstags'  "['electronic', 'rock', 'electro', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '14'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '140.044'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Insert Parallel Universe'
'TBPM' (BPM (beats per minute))                     '140.044'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Click Click 6002'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Zea'
'TRCK' (Track number/Position in set)               '4/14'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.83.01, LAME dll 3.98, 256 Kbit/s, Joint Stereo, Normal quality'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  ['electronic', 'rock', 'electro', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'indietronica', 'all', 'electronic', 'dutch']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.12 dB'
'TXXX:replaygain_track_peak'                        '0.273347'

========================== row from database ==========================
                                              'id'  1331755
                                            'path'  /data/Music/Bulk/00poprockelectronic/Zea/Insert Parallel Universe/Zea - 04 - Click Click 6002.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  165
                                           'genre'  electronic-experimental
                                        'filesize'  5298782
                                           'mtime'  1636473153
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 04 electronic experimental
                                      'tag_artist'  Zea
                                     'tag_release'  Insert Parallel Universe
                                       'tag_title'  Click Click 6002
                                             'bpm'  140.044
                                    'search_title'  '6002':2 'click':1
                                   'search_artist'  'zea':1
                                  'search_release'  'insert':1 'parallel':2 'universe':3
                                     'search_rest'  '00poprockelectronic':1 'electronic':2 'experimental':3
                                    'search_combo'  '00poprockelectronic':7 '6002':2A 'click':1A 'electronic':8 'experimental':9 'insert':4C 'parallel':5C 'universe':6C 'zea':3B
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indietronica', 'all', 'electronic', 'dutch']
                                        'tag_date'  2006
                                     'discogstags'  ['electronic', 'rock', 'electro', 'indie rock']

============================== file details ==============================
                                           'mtime'  1636473153.132159  (2021-11-09 16:52:33)
                             'size'  5298782