======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '274'
                                          'artist'  "Now That's What I Call Music 37 - CD 2"
                                     'text_people'  ''
                                         'release'  "Now That's What I Call Music 37 - CD 2"
                                           'title'  'Bittersweet Symphony'
                                           'quals'  ("['Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '85.453'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     "Now That's What I Call Music 37 - CD 2"
'TBPM' (BPM (beats per minute))                     '85.453'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Bittersweet Symphony'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Verve'
'TPE2' (Band/orchestra/accompaniment)               "Now That's What I Call Music 37 - CD 2"
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.70 dB'
'TXXX:replaygain_track_peak'                        '0.503231'

========================== row from database ==========================
                                              'id'  1305970
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/03 - The Verve - Bittersweet Symphony.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  274
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  4470656
                                           'mtime'  1620566520
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s 03 The Verve electronic generic or radio unsorted
                                      'tag_artist'  Now That's What I Call Music 37 - CD 2
                                     'tag_release'  Now That's What I Call Music 37 - CD 2
                                       'tag_title'  Bittersweet Symphony
                                             'bpm'  85.453
                                    'search_title'  'bittersweet':1 'symphony':2
                                   'search_artist'  '2':11 '37':9 'call':7 'cd':10 'i':6 'music':8 'now':1 's':3 'that':2 'thats':4 'what':5
                                  'search_release'  '2':11 '37':9 'call':7 'cd':10 'i':6 'music':8 'now':1 's':3 'that':2 'thats':4 'what':5
                                     'search_rest'  '00poprockelectronic':1 '90s':2 'electronic':5 'generic':6 'or':7 'radio':8 'the':3 'unsorted':9 'verve':4
                                    'search_combo'  '00poprockelectronic':25 '2':13B,24C '37':11B,22C '90s':26 'bittersweet':1A 'call':9B,20C 'cd':12B,23C 'electronic':29 'generic':30 'i':8B,19C 'music':10B,21C 'now':3B,14C 'or':31 'radio':32 's':5B,16C 'symphony':2A 'that':4B,15C 'thats':6B,17C 'the':27 'unsorted':33 'verve':28 'what':7B,18C
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620566520.3049726  (2021-05-09 15:22:00)
                             'size'  4470656