======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '230'
                                          'artist'  'BT'
                                     'text_people'  ''
                                         'release'  'Blue Skies (feat. Tori Amos)'
                                           'title'  'Blue Skies (radio edit)'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronica', 'trance', 'techno', 'electronic', 'dance']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '126.885'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Blue Skies (feat. Tori Amos)'
'TBPM' (BPM (beats per minute))                     '126.885'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Blue Skies (radio edit)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'BT'
'TRCK' (Track number/Position in set)               '1'
'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'                                   ['electronica', 'trance', 'techno', 'electronic', 'dance']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.47 dB'
'TXXX:replaygain_track_peak'                        '0.244362'

========================== row from database ==========================
                                              'id'  1304897
                                            'path'  /data/Music/Bulk/00poprockelectronic/BT/Blue Skies (feat. Tori Amos)__01 - Blue Skies (radio edit).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  230
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  3686833
                                           'mtime'  1621696096
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Amos)__01 electronic generic dance
                                      'tag_artist'  BT
                                     'tag_release'  Blue Skies (feat. Tori Amos)
                                       'tag_title'  Blue Skies (radio edit)
                                             'bpm'  126.885
                                    'search_title'  'blue':1 'edit':5,6 'radio':3,4 'skies':2
                                   'search_artist'  'bt':1
                                  'search_release'  'amos':6,7 'blue':1 'feat':3,4 'skies':2 'tori':5
                                     'search_rest'  '00poprockelectronic':1 '01':3,5 'amos':2,4 'dance':8 'electronic':6 'generic':7
                                    'search_combo'  '00poprockelectronic':15 '01':17,19 'amos':13C,14C,16,18 'blue':1A,8C 'bt':7B 'dance':22 'edit':5A,6A 'electronic':20 'feat':10C,11C 'generic':21 'radio':3A,4A 'skies':2A,9C 'tori':12C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'trance', 'techno', 'electronic', 'dance']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696095.691501  (2021-05-22 17:08:15)
                             'size'  3686833