======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '180'
                                          'artist'  'Sara Martin'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "I'd Rather Be Blue Than Green"
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'rhythm and blues', 'classic blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1924'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '89.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '89.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TDRC' (Recording time)                             '1924-09-26'
'TIT2' (Title/songname/content description)         "I'd Rather Be Blue Than Green"
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '180000'
'TPE1' (Lead performer(s)/Soloist(s))               'Sara Martin'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['blues', 'rhythm and blues', 'classic blues']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.49 dB'
'TXXX:replaygain_track_peak'                        '0.472974'

========================== row from database ==========================
                                              'id'  1500915
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1924/Sara Martin - I_d Rather Be Blue Than Green 26-9-1924.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  180
                                           'genre'  prerock-jb-blues
                                        'filesize'  3635181
                                           'mtime'  1620401311
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1924 I_d 26 9 1924 prerock jb blues
                                      'tag_artist'  Sara Martin
                                     'tag_release'  None
                                       'tag_title'  I'd Rather Be Blue Than Green
                                             'bpm'  89.0
                                    'search_title'  'be':5 'blue':6 'd':2 'green':8 'i':1 'id':3 'rather':4 'than':7
                                   'search_artist'  'martin':2 'sara':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1924':6 '26':9 '9':10 'blues':13 'country':4 'd':8 'exotica':2 'i':7 'jazz':1 'jb':12 'oldies':3 'prerock':11
                                    'search_combo'  '00oldiepop':15 '1924':16 '26':19 '9':20 'be':5A 'blue':6A 'blues':23 'country':14 'd':2A,18 'exotica':12 'green':8A 'i':1A,17 'id':3A 'jazz':11 'jb':22 'martin':10B 'oldies':13 'prerock':21 'rather':4A 'sara':9B 'than':7A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'rhythm and blues', 'classic blues']
                                        'tag_date'  1924
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620401310.6292834  (2021-05-07 17:28:30)
                             'size'  3635181