======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '173'
                                          'artist'  'Jan Garber & His Orchestra & Bon Davis'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  '189 My heart tells me - Jan Garber & His Orchestra & Bon Davis (12-02-1944)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', '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'  '189'
                                      'tracktotal'  ''
                                            'date'  '1944'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '122.882'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '122.882'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1944'
'TIT2' (Title/songname/content description)         '189 My heart tells me - Jan Garber & His Orchestra & Bon Davis (12-02-1944)'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jan Garber & His Orchestra & Bon Davis'
'TRCK' (Track number/Position in set)               '189'
'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'                                       '1'
'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'                        '-0.17 dB'
'TXXX:replaygain_track_peak'                        '0.299383'

========================== row from database ==========================
                                              'id'  1455118
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/189 My heart tells me - Jan Garber & His Orchestra & Bon Davis (12-02-1944).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  173
                                           'genre'  prerock-swing
                                        'filesize'  2772346
                                           'mtime'  1620561854
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1943 prerock swing
                                      'tag_artist'  Jan Garber & His Orchestra & Bon Davis
                                     'tag_release'  None
                                       'tag_title'  189 My heart tells me - Jan Garber & His Orchestra & Bon Davis (12-02-1944)
                                             'bpm'  122.882
                                    'search_title'  '02':13 '12':12 '12021944':15 '189':1 '1944':14 'bon':10 'davis':11 'garber':7 'heart':3 'his':8 'jan':6 'me':5 'my':2 'orchestra':9 'tells':4
                                   'search_artist'  'bon':5 'davis':6 'garber':2 'his':3 'jan':1 'orchestra':4
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1943':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'swing':8
                                    'search_combo'  '00oldiepop':26 '02':13A '12':12A '12021944':15A '189':1A '1943':27 '1944':14A 'bon':10A,20B 'country':25 'davis':11A,21B 'exotica':23 'garber':7A,17B 'heart':3A 'his':8A,18B 'jan':6A,16B 'jazz':22 'me':5A 'my':2A 'oldies':24 'orchestra':9A,19B 'prerock':28 'swing':29 'tells':4A
                                    'tag_tracknum'  189
                                      'num_images'  0
                                             'key'  4A
                                           '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-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1944
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561853.7252173  (2021-05-09 14:04:13)
                             'size'  2772346