======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '192'
                                          'artist'  'Tommy Dorsey'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "You're Lonely And I'm Lonely (vocal - Frank Sinatra) (take 1)"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['big bands of the 30s and 40s', 'jazz', 'big band', '40s', 'swing', "
 "'trombone']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1940'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '129.813'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '129.813'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1940'
'TIT2' (Title/songname/content description)         "You're Lonely And I'm Lonely (vocal - Frank Sinatra) (take 1)"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tommy Dorsey'
'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'                                   ['big bands of the 30s and 40s', 'jazz', 'big band', '40s', 'swing', 'trombone']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'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'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.62 dB'
'TXXX:replaygain_track_peak'                        '0.446999'

========================== row from database ==========================
                                              'id'  1521803
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1940/Tommy Dorsey - You_re Lonely And I_m Lonely (vocal - Frank Sinatra) (Take 1) 23-4-1940.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  192
                                           'genre'  prerock-band
                                        'filesize'  3850047
                                           'mtime'  1620560869
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1940 You_re I_m (Take 23 4 1940 prerock band
                                      'tag_artist'  Tommy Dorsey
                                     'tag_release'  None
                                       'tag_title'  You're Lonely And I'm Lonely (vocal - Frank Sinatra) (take 1)
                                             'bpm'  129.813
                                    'search_title'  '1':16,17 'and':5 'frank':11 'i':6 'im':8 'lonely':4 'm':7 're':2 'sinatra':12,13 'take':14,15 'vocal':9,10 'you':1 'youre':3
                                   'search_artist'  'dorsey':2 'tommy':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1940':6 '23':13 '4':14 'band':16 'country':4 'exotica':2 'i':9 'jazz':1 'm':10 'oldies':3 'prerock':15 're':8 'take':11,12 'you':7
                                    'search_combo'  '00oldiepop':24 '1':16A,17A '1940':25 '23':32 '4':33 'and':5A 'band':35 'country':23 'dorsey':19B 'exotica':21 'frank':11A 'i':6A,28 'im':8A 'jazz':20 'lonely':4A 'm':7A,29 'oldies':22 'prerock':34 're':2A,27 'sinatra':12A,13A 'take':14A,15A,30,31 'tommy':18B 'vocal':9A,10A 'you':1A,26 'youre':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['big bands of the 30s and 40s', 'jazz', 'big band', '40s', 'swing', 'trombone']
                                        'tag_date'  1940
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560869.080892  (2021-05-09 13:47:49)
                             'size'  3850047