======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '187'
                                          'artist'  'Lew Stone vocal Al Bowly'
                                     'text_people'  ''
                                         'release'  'Right from the Heart (Al Bowlly & Lew Stone)'
                                           'title'  'Gosh, I must be falling in love'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-2', '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-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '117.330'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Right from the Heart (Al Bowlly & Lew Stone)'
'TBPM' (BPM (beats per minute))                     '117.330'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'Gosh, I must be falling in love'
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '187324'
'TPE1' (Lead performer(s)/Soloist(s))               'Lew Stone vocal Al Bowly'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.56 dB'
'TXXX:replaygain_track_peak'                        '0.686206'

========================== row from database ==========================
                                              'id'  1146688
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Lew Stone Duriam Dance Band, Al Bowlly - Gosh, I must be falling in love.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  187
                                           'genre'  prerock-swing
                                        'filesize'  3020800
                                           'mtime'  1620559659
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s and 1930s popular Duriam Dance Band, prerock swing
                                      'tag_artist'  Lew Stone vocal Al Bowly
                                     'tag_release'  Right from the Heart (Al Bowlly & Lew Stone)
                                       'tag_title'  Gosh, I must be falling in love
                                             'bpm'  117.33
                                    'search_title'  'be':5 'falling':6 'gosh':1,2 'i':3 'in':7 'love':8 'must':4
                                   'search_artist'  'al':4 'bowly':5 'lew':1 'stone':2 'vocal':3
                                  'search_release'  'al':5,6 'bowlly':7 'from':2 'heart':4 'lew':8 'right':1 'stone':9,10 'the':3
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':8 'and':7 'band':12,13 'country':4 'dance':11 'duriam':10 'exotica':2 'jazz':1 'oldies':3 'popular':9 'prerock':14 'swing':15
                                    'search_combo'  '00oldiepop':28 '1920s':29 '1930s':31 'al':12B,18C,19C 'and':30 'band':35,36 'be':5A 'bowlly':20C 'bowly':13B 'country':27 'dance':34 'duriam':33 'exotica':25 'falling':6A 'from':15C 'gosh':1A,2A 'heart':17C 'i':3A 'in':7A 'jazz':24 'lew':9B,21C 'love':8A 'must':4A 'oldies':26 'popular':32 'prerock':37 'right':14C 'stone':10B,22C,23C 'swing':38 'the':16C 'vocal':11B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7A
                                           '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-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620559659.2378848  (2021-05-09 13:27:39)
                             'size'  3020800