======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '278'
                                          'artist'  'Victor Salon Group, Rudolf Friml'
                                     'text_people'  ''
                                         'release'  '20s and 30s popular'
                                           'title'  "Rose Marie+Selections (Incl. 'Indian Love Call') (1924)"
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1925'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '124.087'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '20s and 30s popular'
'TBPM' (BPM (beats per minute))                     '124.087'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1925'
'TIT2' (Title/songname/content description)         "Rose Marie+Selections (Incl. 'Indian Love Call') (1924)"
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Victor Salon Group, Rudolf Friml'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.57 dB'
'TXXX:replaygain_track_peak'                        '0.477566'

========================== row from database ==========================
                                              'id'  1509088
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Victor Salon Group, Rudolf Friml - Rose Marie+Selections (Incl. _Indian Love Call_) (1924).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  278
                                           'genre'  prerock-unsorted
                                        'filesize'  5659352
                                           'mtime'  1620385525
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s _Indian Call_) prerock unsorted
                                      'tag_artist'  Victor Salon Group, Rudolf Friml
                                     'tag_release'  20s and 30s popular
                                       'tag_title'  Rose Marie+Selections (Incl. 'Indian Love Call') (1924)
                                             'bpm'  124.087
                                    'search_title'  '1924':11,12 'call':9,10 'incl':4,5 'indian':6,7 'love':8 'marie':2 'rose':1 'selections':3
                                   'search_artist'  'friml':6 'group':3,4 'rudolf':5 'salon':2 'victor':1
                                  'search_release'  '20s':1 '30s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 'call':9,10 'country':4 'exotica':2 'indian':8 'jazz':1 'oldies':3 'prerock':11 'unsorted':12
                                    'search_combo'  '00oldiepop':27 '1920s':28 '1924':11A,12A '1930s':29 '20s':19C '30s':21C 'and':20C 'call':9A,10A,31,32 'country':26 'exotica':24 'friml':18B 'group':15B,16B 'incl':4A,5A 'indian':6A,7A,30 'jazz':23 'love':8A 'marie':2A 'oldies':25 'popular':22C 'prerock':33 'rose':1A 'rudolf':17B 'salon':14B 'selections':3A 'unsorted':34 'victor':13B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1925
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385524.6028502  (2021-05-07 13:05:24)
                             'size'  5659352