======================== unified (from filesystem) ========================
                                         'bitrate'  '80.0'
                                        'duration'  '187'
                                          'artist'  'Freddy Martin & His Orchestra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'I Saw Stars'
                                           '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-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'jazz', 'illstreet', 'big bands', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '145.059'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Debuted 1934 and peaked at #1 on Various Charts. Source: Pop Memories'
'COMM:ID3v1 Comment:XXX'                            'Debuted 1934 and peaked at #1'
'TBPM' (BPM (beats per minute))                     '145.059'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1934'
'TIT2' (Title/songname/content description)         'I Saw Stars'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Freddy Martin & His Orchestra'
'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'                                   ['all', 'jazz', 'illstreet', 'big bands', '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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.10 dB'
'TXXX:replaygain_track_peak'                        '0.532541'

========================== row from database ==========================
                                              'id'  1454961
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/I saw stars - Freddy Martin and his orchestra (vocal by Elmer Feldkamp).mp3
                                         'working'  None
                                         'bitrate'  80
                                    'duration_sec'  187
                                           'genre'  prerock-swing
                                        'filesize'  1880211
                                           'mtime'  1620560473
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 saw stars and his orchestra (vocal by Elmer Feldkamp) prerock swing
                                      'tag_artist'  Freddy Martin & His Orchestra
                                     'tag_release'  None
                                       'tag_title'  I Saw Stars
                                             'bpm'  145.059
                                    'search_title'  'i':1 'saw':2 'stars':3
                                   'search_artist'  'freddy':1 'his':3 'martin':2 'orchestra':4
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1934':6 'and':9 'by':14 'country':4 'elmer':15 'exotica':2 'feldkamp':16,17 'his':10 'jazz':1 'oldies':3 'orchestra':11 'prerock':18 'saw':7 'stars':8 'swing':19 'vocal':12,13
                                    'search_combo'  '00oldiepop':12 '1934':13 'and':16 'by':21 'country':11 'elmer':22 'exotica':9 'feldkamp':23,24 'freddy':4B 'his':6B,17 'i':1A 'jazz':8 'martin':5B 'oldies':10 'orchestra':7B,18 'prerock':25 'saw':2A,14 'stars':3A,15 'swing':26 'vocal':19,20
                                    '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-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-3', 'q-grit-1']
                                      'lastfmtags'  ['all', 'jazz', 'illstreet', 'big bands', 'swing']
                                        'tag_date'  1934
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560473.2138553  (2021-05-09 13:41:13)
                             'size'  1880211