======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '153'
                                          'artist'  'Al Bowlly'
                                     'text_people'  ''
                                         'release'  'Bluebird B  7332'
                                           'title'  "I Can Dream Can't I  (+ studio orchestra)"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-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-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['30s', 'oldies', 'jazz', 'pop', '1930s', 'crooner']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1937'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '125.2'
                                             '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'
'TALB' (Album/Movie/Show title)                     'Bluebird B  7332'
'TBPM' (BPM (beats per minute))                     '125.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1937-12-03'
'TIT2' (Title/songname/content description)         "I Can Dream Can't I  (+ studio orchestra)"
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '153000'
'TPE1' (Lead performer(s)/Soloist(s))               'Al Bowlly'
'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:lastfmtags'                                   ['30s', 'oldies', 'jazz', 'pop', '1930s', 'crooner']
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.57 dB'
'TXXX:replaygain_track_peak'                        '0.765829'

========================== row from database ==========================
                                              'id'  1517492
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1937/Al Bowlly - I Can Dream Can_t I (studio orch) 3-12-1937.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  153
                                           'genre'  prerock-band
                                        'filesize'  3117224
                                           'mtime'  1620560516
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1937 Can_t (studio orch) 12 1937 prerock band
                                      'tag_artist'  Al Bowlly
                                     'tag_release'  Bluebird B  7332
                                       'tag_title'  I Can Dream Can't I  (+ studio orchestra)
                                             'bpm'  125.2
                                    'search_title'  'can':2,4 'cant':6 'dream':3 'i':1 'orchestra':8,9 'studio':7 't':5
                                   'search_artist'  'al':1 'bowlly':2
                                  'search_release'  '7332':3 'b':2 'bluebird':1
                                     'search_rest'  '00oldiepop':5 '1937':6 'band':14 'can':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'orch':11,12 'prerock':13 'studio':9,10 't':8
                                    'search_combo'  '00oldiepop':19 '1937':20 '7332':14C 'al':10B 'b':13C 'band':28 'bluebird':12C 'bowlly':11B 'can':2A,4A,21 'cant':6A 'country':18 'dream':3A 'exotica':16 'i':1A 'jazz':15 'oldies':17 'orch':25,26 'orchestra':8A,9A 'prerock':27 'studio':7A,23,24 't':5A,22
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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'  ['30s', 'oldies', 'jazz', 'pop', '1930s', 'crooner']
                                        'tag_date'  1937
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560516.1948733  (2021-05-09 13:41:56)
                             'size'  3117224