======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '197'
                                          'artist'  'Eddy Duchin & His Orchestra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'I Never Had A Chance'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', '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']")
                                      'lastfmtags'  "['big bands of the 30s and 40s', 'jazz', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '40'
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '125.006'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Debuted 1934 and peaked at #3 on Various Charts. Source: Pop Memories'
'COMM:ID3v1 Comment:XXX'                            'Debuted 1934 and peaked at #'
'TBPM' (BPM (beats per minute))                     '125.006'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1934'
'TIT2' (Title/songname/content description)         'I Never Had A Chance'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Eddy Duchin & His Orchestra'
'TRCK' (Track number/Position in set)               '40'
'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:lastfmtags'                                   ['big bands of the 30s and 40s', 'jazz', 'oldies', 'swing']
'TXXX:q-bass'                                       '3'
'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'                        '+0.92 dB'
'TXXX:replaygain_track_peak'                        '0.537612'

========================== row from database ==========================
                                              'id'  1455293
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/I never had a chance - Eddy Duchin and his orchestra (vocal by Lew Sherwood).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  197
                                           'genre'  prerock-swing
                                        'filesize'  3156344
                                           'mtime'  1620560473
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 never had chance and his orchestra (vocal by Lew Sherwood) prerock swing
                                      'tag_artist'  Eddy Duchin & His Orchestra
                                     'tag_release'  None
                                       'tag_title'  I Never Had A Chance
                                             'bpm'  125.006
                                    'search_title'  'a':4 'chance':5 'had':3 'i':1 'never':2
                                   'search_artist'  'duchin':2 'eddy':1 'his':3 'orchestra':4
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1934':6 'and':10 'by':15 'chance':9 'country':4 'exotica':2 'had':8 'his':11 'jazz':1 'lew':16 'never':7 'oldies':3 'orchestra':12 'prerock':19 'sherwood':17,18 'swing':20 'vocal':13,14
                                    'search_combo'  '00oldiepop':14 '1934':15 'a':4A 'and':19 'by':24 'chance':5A,18 'country':13 'duchin':7B 'eddy':6B 'exotica':11 'had':3A,17 'his':8B,20 'i':1A 'jazz':10 'lew':25 'never':2A,16 'oldies':12 'orchestra':9B,21 'prerock':28 'sherwood':26,27 'swing':29 'vocal':22,23
                                    'tag_tracknum'  40
                                      'num_images'  0
                                             'key'  6B
                                           '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-3', 'q-grit-1']
                                      'lastfmtags'  ['big bands of the 30s and 40s', 'jazz', 'oldies', 'swing']
                                        'tag_date'  1934
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560472.9778447  (2021-05-09 13:41:12)
                             'size'  3156344