======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '179'
                                          'artist'  'Don Moreland'
                                     'text_people'  ''
                                         'release'  'Moreland Tapes'
                                           'title'  'September Song (Live)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '90.7'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'blog.wfmu.org'
'TALB' (Album/Movie/Show title)                     'Moreland Tapes'
'TBPM' (BPM (beats per minute))                     '90.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TIT2' (Title/songname/content description)         'September Song (Live)'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '178996'
'TPE1' (Lead performer(s)/Soloist(s))               'Don Moreland'
'TRCK' (Track number/Position in set)               '04'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.85 dB'
'TXXX:replaygain_track_peak'                        '0.669280'

========================== row from database ==========================
                                              'id'  660114
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/10/287_04_Don_Moreland_-_September_Song_(Live).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  179
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  2934817
                                           'mtime'  1620538336
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 10 287_04_Don_Moreland_ _September_Song_(Live) prerock jb jazz unsorted
                                      'tag_artist'  Don Moreland
                                     'tag_release'  Moreland Tapes
                                       'tag_title'  September Song (Live)
                                             'bpm'  90.7
                                    'search_title'  'live':3,4 'september':1 'song':2
                                   'search_artist'  'don':1 'moreland':2
                                  'search_release'  'moreland':1 'tapes':2
                                     'search_rest'  '04':2 '287':1 'don':3 'jazz':13 'jb':12 'live':7,10 'moreland':4 'prerock':11 'september':5,8 'song':6,9 'unsorted':14
                                    'search_combo'  '04':10 '287':9 'don':5B,11 'jazz':21 'jb':20 'live':3A,4A,15,18 'moreland':6B,7C,12 'prerock':19 'september':1A,13,16 'song':2A,14,17 'tapes':8C 'unsorted':22
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620538335.6032376  (2021-05-09 07:32:15)
                             'size'  2934817