======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '172'
                                          'artist'  "Arthur Pryor's Band"
                                     'text_people'  ''
                                         'release'  'Victor  5684'
                                           'title'  'Frozen Bill'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1909'
                                        'comments'  ''
                                           'genre'  'prerock-instrumental'
                                             'bpm'  '97.2'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     'Victor  5684'
'TBPM' (BPM (beats per minute))                     '97.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-instrumental'
'TDRC' (Recording time)                             '1909-10-02'
'TIT2' (Title/songname/content description)         'Frozen Bill'
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '172000'
'TPE1' (Lead performer(s)/Soloist(s))               "Arthur Pryor's Band"
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.89 dB'
'TXXX:replaygain_track_peak'                        '0.560230'

========================== row from database ==========================
                                              'id'  1521229
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1909/Arthur Pryor_s Band - Frozen Bill 2-10-1909.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  172
                                           'genre'  prerock-instrumental
                                        'filesize'  3607469
                                           'mtime'  1621705359
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1909 Pryor_s 2 10 1909 prerock instrumental
                                      'tag_artist'  Arthur Pryor's Band
                                     'tag_release'  Victor  5684
                                       'tag_title'  Frozen Bill
                                             'bpm'  97.2
                                    'search_title'  'bill':2 'frozen':1
                                   'search_artist'  'arthur':1 'band':5 'pryor':2 'pryors':4 's':3
                                  'search_release'  '5684':2 'victor':1
                                     'search_rest'  '00oldiepop':5 '1909':6 '2':9 'country':4 'exotica':2 'instrumental':11 'jazz':1 'oldies':3 'prerock':10 'pryor':7 's':8
                                    'search_combo'  '00oldiepop':14 '1909':15 '2':18 '5684':9C 'arthur':3B 'band':7B 'bill':2A 'country':13 'exotica':11 'frozen':1A 'instrumental':20 'jazz':10 'oldies':12 'prerock':19 'pryor':4B,16 'pryors':6B 's':5B,17 'victor':8C
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1909
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705358.9649868  (2021-05-22 19:42:38)
                             'size'  3607469