======================== unified (from filesystem) ========================
                                         'bitrate'  '64.0'
                                        'duration'  '174'
                                          'artist'  'Bix Beiderbecke & His Gang'
                                     'text_people'  ''
                                         'release'  'Sentimental Journey 41'
                                           'title'  'At the Jazz Band Ball'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'Q-JZFKS-3', 'Q-OLDST-1', 'q-chart-2', 'q-drums-1', 'q-other-4', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['jazz', 'dixieland', 'best gal', 'all', 'jazz baby']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1927'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-o-dixiestyle'
                                             'bpm'  '100.406'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=196, count=0)
'TALB' (Album/Movie/Show title)                     'Sentimental Journey 41'
'TBPM' (BPM (beats per minute))                     '100.406'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-o-dixiestyle'
'TDRC' (Recording time)                             '1927'
'TIT2' (Title/songname/content description)         'At the Jazz Band Ball'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bix Beiderbecke & His Gang'
'TPE2' (Band/orchestra/accompaniment)               'Bix Beiderbecke & His Gang'
'TXXX:FMPS_Rating'                                  '0.8'
'TXXX:MP3GAIN_MINMAX'                               '141,178'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'dixieland', 'best gal', 'all', 'jazz baby']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.17 dB'
'TXXX:replaygain_track_peak'                        '0.611574'

========================== row from database ==========================
                                              'id'  1359883
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Bix Beiderbecke & His Gang__Sentimental Journey 41__At the Jazz Band Ball.mp3
                                         'working'  None
                                         'bitrate'  64
                                    'duration_sec'  174
                                           'genre'  prerock-jb-jazz-o-dixiestyle
                                        'filesize'  1395349
                                           'mtime'  1620541221
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Gang__Sentimental 41__At prerock jb jazz dixiestyle
                                      'tag_artist'  Bix Beiderbecke & His Gang
                                     'tag_release'  Sentimental Journey 41
                                       'tag_title'  At the Jazz Band Ball
                                             'bpm'  100.406
                                    'search_title'  'at':1 'ball':5 'band':4 'jazz':3 'the':2
                                   'search_artist'  'beiderbecke':2 'bix':1 'gang':4 'his':3
                                  'search_release'  '41':3 'journey':2 'sentimental':1
                                     'search_rest'  '00poprockelectronic':1 '41':9 'at':10 'dixiestyle':14 'files':5,6 'gang':7 'jazz':13 'jb':12 'loose':3,4 'prerock':11 'sentimental':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':13 '41':12C,21 'at':1A,22 'ball':5A 'band':4A 'beiderbecke':7B 'bix':6B 'dixiestyle':26 'files':17,18 'gang':9B,19 'his':8B 'jazz':3A,25 'jb':24 'journey':11C 'loose':15,16 'prerock':23 'sentimental':10C,20 'the':2A 'unsorted':14
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'dixieland', 'best gal', 'all', 'jazz baby']
                                        'tag_date'  1927
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620541221.2692292  (2021-05-09 08:20:21)
                             'size'  1395349