======================== unified (from filesystem) ========================
                                         'bitrate'  '175.285'
                                        'duration'  '229'
                                          'artist'  'Kylie Minogue'
                                     'text_people'  ''
                                         'release'  'Fever'
                                           'title'  'Your Love'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'electronic', 'australian', 'female vocalists', 'pop']"
                                     'discogstags'  "['electronic', 'house', 'synth-pop', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '12'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '119.900'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000DC2 00000DC2 000087F1'
'COMM:iTunNORM:eng'                                 (' 00000DC2 00000DC2 000087F1 000087F1 00030614 00030614 00007D6F 00007D6F '
 '00004EC6 0000E943')
'COMM:iTunes_CDDB_IDs:eng'                          '12+09C1F8B732F9D89B000C6DC1A1EB29BB+2148574'
'TALB' (Album/Movie/Show title)                     'Fever'
'TBPM' (BPM (beats per minute))                     '119.900'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '2001'
'TENC' (Encoded by)                                 'iTunes v3.0.1'
'TIT2' (Title/songname/content description)         'Your Love'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Kylie Minogue'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '11/12'
'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:discogstags'                                  ['electronic', 'house', 'synth-pop', 'disco']
'TXXX:lastfmtags'                                   ['dance', 'electronic', 'australian', 'female vocalists', 'pop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.90 dB'
'TXXX:replaygain_track_peak'                        '0.544614'

========================== row from database ==========================
                                              'id'  1329972
                                            'path'  /data/Music/Bulk/00poprockelectronic/Fever/11 Your Love.mp3
                                         'working'  None
                                         'bitrate'  175
                                    'duration_sec'  229
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  5035355
                                           'mtime'  1621696259
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 11 electronic generic or radio dance
                                      'tag_artist'  Kylie Minogue
                                     'tag_release'  Fever
                                       'tag_title'  Your Love
                                             'bpm'  119.9
                                    'search_title'  'love':2 'your':1
                                   'search_artist'  'kylie':1 'minogue':2
                                  'search_release'  'fever':1
                                     'search_rest'  '00poprockelectronic':1 'dance':6 'electronic':2 'generic':3 'or':4 'radio':5
                                    'search_combo'  '00poprockelectronic':6 'dance':11 'electronic':7 'fever':5C 'generic':8 'kylie':3B 'love':2A 'minogue':4B 'or':9 'radio':10 'your':1A
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'electronic', 'australian', 'female vocalists', 'pop']
                                        'tag_date'  2001
                                     'discogstags'  ['electronic', 'house', 'synth-pop', 'disco']

============================== file details ==============================
                                           'mtime'  1621696259.1133173  (2021-05-22 17:10:59)
                             'size'  5035355