======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '366'
                                          'artist'  'Long Distance Calling'
                                     'text_people'  ''
                                         'release'  'Long Distance Calling'
                                           'title'  "The Figrin D'an Boogie"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'progressive rock', 'post rock', 'german']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '129.7'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Long Distance Calling'
'TBPM' (BPM (beats per minute))                     '129.7'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         "The Figrin D'an Boogie"
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Long Distance Calling'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['instrumental', 'progressive rock', 'post rock', 'german']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.96 dB'
'TXXX:replaygain_track_peak'                        '0.511549'

========================== row from database ==========================
                                              'id'  1508996
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/long distance calling - long distance calling (new! 2011)/02 - the figrin d_an boogie.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  366
                                           'genre'  rock-cppex-progressive
                                        'filesize'  14653762
                                           'mtime'  1620737774
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy long distance calling long distance calling (new! 2011) 02 the figrin d_an boogie rock cppex progressive
                                      'tag_artist'  Long Distance Calling
                                     'tag_release'  Long Distance Calling
                                       'tag_title'  The Figrin D'an Boogie
                                             'bpm'  129.7
                                    'search_title'  'an':4 'boogie':6 'd':3 'dan':5 'figrin':2 'the':1
                                   'search_artist'  'calling':3 'distance':2 'long':1
                                  'search_release'  'calling':3 'distance':2 'long':1
                                     'search_rest'  '2011':7,8 'an':12 'boogie':13 'calling':4 'classicprogpsy':1 'cppex':15 'd':11 'distance':3 'figrin':10 'long':2 'new':5,6 'progressive':16 'rock':14 'the':9
                                    'search_combo'  '2011':19,20 'an':4A,24 'boogie':6A,25 'calling':9B,12C,16 'classicprogpsy':13 'cppex':27 'd':3A,23 'dan':5A 'distance':8B,11C,15 'figrin':2A,22 'long':7B,10C,14 'new':17,18 'progressive':28 'rock':26 'the':1A,21
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'progressive rock', 'post rock', 'german']
                                        'tag_date'  2011
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620737773.5401862  (2021-05-11 14:56:13)
                             'size'  14653762