======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '3766'
                                          'artist'  'Ben Liebrand'
                                     'text_people'  ''
                                         'release'  'Grandmix Summer Edition CD1'
                                           'title'  'Grandmix Summer Edition Cd1-2-'
                                           'quals'  ("['Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'in the mix', '90s', 'remixes', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '113.389'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Grandmix Summer Edition CD1'
'TBPM' (BPM (beats per minute))                     '113.389'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Grandmix Summer Edition Cd1-2-'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ben Liebrand'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'in the mix', '90s', 'remixes', 'disco']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.45 dB'
'TXXX:replaygain_track_peak'                        '0.667713'

========================== row from database ==========================
                                              'id'  1353329
                                            'path'  /data/Music/Bulk/00poprockelectronic/Ben Liebrand/Ben Liebrand - Grandmix Summer Edition CD1-2-3 [Complete].mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  3766
                                           'genre'  electronic-unsorted
                                        'filesize'  75335108
                                           'mtime'  1620567709
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 3 [Complete] electronic unsorted
                                      'tag_artist'  Ben Liebrand
                                     'tag_release'  Grandmix Summer Edition CD1
                                       'tag_title'  Grandmix Summer Edition Cd1-2-
                                             'bpm'  113.389
                                    'search_title'  '2':5 'cd1':4 'cd12':6 'edition':3 'grandmix':1 'summer':2
                                   'search_artist'  'ben':1 'liebrand':2
                                  'search_release'  'cd1':4 'edition':3 'grandmix':1 'summer':2
                                     'search_rest'  '00poprockelectronic':1 '3':2 'complete':3,4 'electronic':5 'unsorted':6
                                    'search_combo'  '00poprockelectronic':13 '2':5A '3':14 'ben':7B 'cd1':4A,12C 'cd12':6A 'complete':15,16 'edition':3A,11C 'electronic':17 'grandmix':1A,9C 'liebrand':8B 'summer':2A,10C 'unsorted':18
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'in the mix', '90s', 'remixes', 'disco']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620567708.7083535  (2021-05-09 15:41:48)
                             'size'  75335108