======================== unified (from filesystem) ========================
                                         'bitrate'  '316.786'
                                        'duration'  '209'
                                          'artist'  'Frank Pleyer'
                                     'text_people'  ''
                                         'release'  'Easy Instr 70s'
                                           'title'  "Bubble & Squeak (funk German Lib. 19 DE '75 -'82)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'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-2']")
                                      'lastfmtags'  "['lounge', 'dusty fingers']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '123.6'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Easy Instr 70s'
'TBPM' (BPM (beats per minute))                     '123.6'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         "Bubble & Squeak (funk German Lib. 19 DE '75 -'82)"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Frank Pleyer'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['lounge', 'dusty fingers']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.53 dB'
'TXXX:replaygain_track_peak'                        '0.464197'

========================== row from database ==========================
                                              'id'  1530098
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/Frank Pleyer - Bubble & Squeak (funk German Lib. 19 DE _75 -_82).mp3
                                         'working'  None
                                         'bitrate'  316
                                    'duration_sec'  209
                                           'genre'  funk or soul
                                        'filesize'  8310886
                                           'mtime'  1628357829
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing soul EASY 70_s _75 _82) or soul
                                      'tag_artist'  Frank Pleyer
                                     'tag_release'  Easy Instr 70s
                                       'tag_title'  Bubble & Squeak (funk German Lib. 19 DE '75 -'82)
                                             'bpm'  123.6
                                    'search_title'  '19':8 '75':10,11 '82':12,13 'bubble':1 'de':9 'funk':3,4 'german':5 'lib':6,7 'squeak':2
                                   'search_artist'  'frank':1 'pleyer':2
                                  'search_release'  '70s':3 'easy':1 'instr':2
                                     'search_rest'  '70':4 '75':6 '82':7,8 'easy':3 'or':9 's':5 'soul':2 'swing':1
                                    'search_combo'  '19':8A '70':22 '70s':18C '75':10A,11A,24 '82':12A,13A,25,26 'bubble':1A 'de':9A 'easy':16C,21 'frank':14B 'funk':3A,4A 'german':5A 'instr':17C 'lib':6A,7A 'or':27 'pleyer':15B 's':23 'soul':20 'squeak':2A 'swing':19
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', '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'  ['lounge', 'dusty fingers']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357829.37228  (2021-08-07 19:37:09)
                             'size'  8310886