======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '436'
                                          'artist'  'D.O.N.S & D.B.N ft Kadoc'
                                     'text_people'  ''
                                         'release'  'Uplifting Progressive Trance'
                                           'title'  'The night train (Chris Kaeser orient express Mix)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic-th-house-progressive'
                                             'bpm'  '128.0'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'POPM:\x01ÿþ3'                                      POPM(email='\x01ÿþ3', rating=0, count=0)
'TALB' (Album/Movie/Show title)                     'Uplifting Progressive Trance'
'TBPM' (BPM (beats per minute))                     '128.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-house-progressive'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'The night train (Chris Kaeser orient express Mix)'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'D.O.N.S & D.B.N ft Kadoc'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'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:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.79 dB'
'TXXX:replaygain_track_peak'                        '0.400989'

========================== row from database ==========================
                                              'id'  731902
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/tribal electro ~ classic progressive house ~ uplifting progressive trance/D.O.N.S & D.B.N ft Kadoc - The night train (Chris Kaeser orient express Mix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  436
                                           'genre'  electronic-th-house-progressive
                                        'filesize'  17481059
                                           'mtime'  1620580663
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm tribal electro ~ classic progressive house ~ uplifting progressive trance electronic th house progressive
                                      'tag_artist'  D.O.N.S & D.B.N ft Kadoc
                                     'tag_release'  Uplifting Progressive Trance
                                       'tag_title'  The night train (Chris Kaeser orient express Mix)
                                             'bpm'  128.0
                                    'search_title'  'chris':4,5 'express':8 'kaeser':6 'mix':9,10 'night':2 'orient':7 'the':1 'train':3
                                   'search_artist'  'b':7 'd':1,6 'dbn':9 'dons':5 'ft':10 'kadoc':11 'n':3,8 'o':2 's':4
                                  'search_release'  'progressive':2 'trance':3 'uplifting':1
                                     'search_rest'  'classic':3 'electro':2 'electronic':8 'house':5 'progressive':4 'th':9 'trance':7 'tribal':1 'uplifting':6
                                    'search_combo'  'b':17B 'chris':4A,5A 'classic':27 'd':11B,16B 'dbn':19B 'dons':15B 'electro':26 'electronic':32 'express':8A 'ft':20B 'house':29 'kadoc':21B 'kaeser':6A 'mix':9A,10A 'n':13B,18B 'night':2A 'o':12B 'orient':7A 'progressive':23C,28 's':14B 'th':33 'the':1A 'train':3A 'trance':24C,31 'tribal':25 'uplifting':22C,30
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620580663.488762  (2021-05-09 19:17:43)
                             'size'  17481059