======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '182'
                                          'artist'  'Ambrose and His Orchestra'
                                     'text_people'  ''
                                         'release'  'AMBROSE'
                                           'title'  'Whistling In The Dark'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['all', 'big band', 'i wish i could shimmy like my sister kate', "
 "'dixieland', 'swing']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '84.210'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'AMBROSE'
'TBPM' (BPM (beats per minute))                     '84.210'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'Whistling In The Dark'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '182517'
'TPE1' (Lead performer(s)/Soloist(s))               'Ambrose and His Orchestra'
'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:lastfmtags'                                   ['all',
 'big band',
 'i wish i could shimmy like my sister kate',
 'dixieland',
 'swing']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                        '+0.29 dB'
'TXXX:replaygain_track_peak'                        '0.505254'

========================== row from database ==========================
                                              'id'  1153629
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Ambrose Mayfair Hotel Orchestra - Whistling In The Dark.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  182
                                           'genre'  prerock-band
                                        'filesize'  2926592
                                           'mtime'  1620559741
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s popular Mayfair Hotel prerock band
                                      'tag_artist'  Ambrose and His Orchestra
                                     'tag_release'  AMBROSE
                                       'tag_title'  Whistling In The Dark
                                             'bpm'  84.21
                                    'search_title'  'dark':4 'in':2 'the':3 'whistling':1
                                   'search_artist'  'ambrose':1 'and':2 'his':3 'orchestra':4
                                  'search_release'  'ambrose':1
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 'band':12 'country':4 'exotica':2 'hotel':10 'jazz':1 'mayfair':9 'oldies':3 'popular':8 'prerock':11
                                    'search_combo'  '00oldiepop':14 '1920s':15 '1930s':16 'ambrose':5B,9C 'and':6B 'band':21 'country':13 'dark':4A 'exotica':11 'his':7B 'hotel':19 'in':2A 'jazz':10 'mayfair':18 'oldies':12 'orchestra':8B 'popular':17 'prerock':20 'the':3A 'whistling':1A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['all', 'big band', 'i wish i could shimmy like my sister kate', 'dixieland', 'swing']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620559740.7536423  (2021-05-09 13:29:00)
                             'size'  2926592