======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '177'
                                          'artist'  'Jimmy Dorsey & His Orchestra & Bob Eberly'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ("012 I'm getting so tired so I can sleep - Jimmy Dorsey & His Orchestra & Bob "
 'Eberly (6-03-1943)')
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '102.437'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '102.437'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         ("012 I'm getting so tired so I can sleep - Jimmy Dorsey & His Orchestra & Bob "
 'Eberly (6-03-1943)')
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jimmy Dorsey & His Orchestra & Bob Eberly'
'TRCK' (Track number/Position in set)               '12'
'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'                                       '4'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.02 dB'
'TXXX:replaygain_track_peak'                        '0.356020'

========================== row from database ==========================
                                              'id'  1505567
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/012 I_m getting so tired so I can sleep - Jimmy Dorsey & His Orchestra & Bob Eberly (6-03-1943).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  177
                                           'genre'  prerock-swing
                                        'filesize'  2847997
                                           'mtime'  1620561810
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop I_m prerock swing
                                      'tag_artist'  Jimmy Dorsey & His Orchestra & Bob Eberly
                                     'tag_release'  None
                                       'tag_title'  012 I'm getting so tired so I can sleep - Jimmy Dorsey & His Orchestra & Bob Eberly (6-03-1943)
                                             'bpm'  102.437
                                    'search_title'  '03':17 '1943':18 '6':16 '6031943':19 'bob':14 'can':8 'dorsey':11 'eberly':15 'getting':4 'his':12 'i':1,7 'im':3 'jimmy':10 'm':2 'orchestra':13 'sleep':9 'so':5 'tired':6
                                   'search_artist'  'bob':5 'dorsey':2 'eberly':6 'his':3 'jimmy':1 'orchestra':4
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'i':6 'jazz':1 'm':7 'oldies':3 'prerock':8 'swing':9
                                    'search_combo'  '00oldiepop':30 '03':17A '1943':18A '6':16A '6031943':19A 'bob':14A,24B 'can':8A 'country':29 'dorsey':11A,21B 'eberly':15A,25B 'exotica':27 'getting':4A 'his':12A,22B 'i':1A,7A,31 'im':3A 'jazz':26 'jimmy':10A,20B 'm':2A,32 'oldies':28 'orchestra':13A,23B 'prerock':33 'sleep':9A 'so':5A 'swing':34 'tired':6A
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  8A
                                           '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-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1943
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561809.704755  (2021-05-09 14:03:29)
                             'size'  2847997