======================== unified (from filesystem) ========================
                                         'bitrate'  '208.283'
                                        'duration'  '240'
                                          'artist'  'Basshunter'
                                     'text_people'  ''
                                         'release'  'LOL (International Edition)'
                                           'title'  'GPS'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-1', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['dance', 'trance', 'swedish', 'techno', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '139.851'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'LOL (International Edition)'
'TBPM' (BPM (beats per minute))                     '139.851'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'LAME APS'
'TIT2' (Title/songname/content description)         'GPS'
'TKEY' (Initial key)                                '7B'
'TLAN' (Language(s))                                'Swedish'
'TPE1' (Lead performer(s)/Soloist(s))               'Basshunter'
'TRCK' (Track number/Position in set)               '6'
'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', 'trance', 'swedish', 'techno', 'electronic']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '1'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-2.42 dB'
'TXXX:replaygain_track_peak'                        '0.490673'

========================== row from database ==========================
                                              'id'  1314342
                                            'path'  /data/Music/Bulk/00poprockelectronic/00dnb/Basshunter/LOL/06-basshunter-gps.mp3
                                         'working'  None
                                         'bitrate'  208
                                    'duration_sec'  240
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  6264919
                                           'mtime'  1621695933
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00dnb 06 basshunter gps electronic th breakbeat or dnb or jungle
                                      'tag_artist'  Basshunter
                                     'tag_release'  LOL (International Edition)
                                       'tag_title'  GPS
                                             'bpm'  139.851
                                    'search_title'  'gps':1
                                   'search_artist'  'basshunter':1
                                  'search_release'  'edition':4,5 'international':2,3 'lol':1
                                     'search_rest'  '00dnb':2 '00poprockelectronic':1 'basshunter':3 'breakbeat':7 'dnb':9 'electronic':5 'gps':4 'jungle':10 'or':8 'th':6
                                    'search_combo'  '00dnb':9 '00poprockelectronic':8 'basshunter':2B,10 'breakbeat':14 'dnb':16 'edition':6C,7C 'electronic':12 'gps':1A,11 'international':4C,5C 'jungle':17 'lol':3C 'or':15 'th':13
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-1', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['dance', 'trance', 'swedish', 'techno', 'electronic']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695933.0819612  (2021-05-22 17:05:33)
                             'size'  6264919