======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '416'
                                          'artist'  'Dire Straits'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Money For Nothing (vinyl LP edit)'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-3', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'guitar', 'blues', 'rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '136.276'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '136.276'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Money For Nothing (vinyl LP edit)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dire Straits'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'guitar', 'blues', 'rock', 'classic rock']
'TXXX:other'                                        'C'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.87 dB'
'TXXX:replaygain_track_peak'                        '0.961020'

========================== row from database ==========================
                                              'id'  1313415
                                            'path'  /data/Music/Bulk/00poprockelectronic/1985 complete/212-C Dire Straits - Money For Nothing (vinyl LP edit).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  416
                                           'genre'  rock-cppex
                                        'filesize'  16646578
                                           'mtime'  1620736993
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1985 complete 212 C rock cppex
                                      'tag_artist'  Dire Straits
                                     'tag_release'  None
                                       'tag_title'  Money For Nothing (vinyl LP edit)
                                             'bpm'  136.276
                                    'search_title'  'edit':7,8 'for':2 'lp':6 'money':1 'nothing':3 'vinyl':4,5
                                   'search_artist'  'dire':1 'straits':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '1985':2 '212':4 'c':5 'complete':3 'cppex':7 'rock':6
                                    'search_combo'  '00poprockelectronic':11 '1985':12 '212':14 'c':15 'complete':13 'cppex':17 'dire':9B 'edit':7A,8A 'for':2A 'lp':6A 'money':1A 'nothing':3A 'rock':16 'straits':10B 'vinyl':4A,5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'guitar', 'blues', 'rock', 'classic rock']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736992.988372  (2021-05-11 14:43:12)
                             'size'  16646578