======================== unified (from filesystem) ========================
                                         'bitrate'  '80.0'
                                        'duration'  '184'
                                          'artist'  'George Olsen & His Orchestra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'A Precious Little Thing Called Love'
                                           '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-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['big band', '20s', 'jazz', '30s', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1929'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '145.685'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Debuted 1929 and peaked at #1 on Various Charts. Source: Pop Memories'
'COMM:ID3v1 Comment:XXX'                            'Debuted 1929 and peaked at #1'
'TBPM' (BPM (beats per minute))                     '145.685'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1929'
'TIT2' (Title/songname/content description)         'A Precious Little Thing Called Love'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'George Olsen & 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'                                   ['big band', '20s', 'jazz', '30s', 'swing']
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.95 dB'
'TXXX:replaygain_track_peak'                        '0.667075'

========================== row from database ==========================
                                              'id'  959834
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/A precious little thing called love - George Olsen and his orchestra (vocal by Ethel Shutta).mp3
                                         'working'  None
                                         'bitrate'  80
                                    'duration_sec'  184
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  1846774
                                           'mtime'  1620528076
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country precious little thing called love and his orchestra (vocal by Ethel Shutta) prerock jb jazz unsorted
                                      'tag_artist'  George Olsen & His Orchestra
                                     'tag_release'  None
                                       'tag_title'  A Precious Little Thing Called Love
                                             'bpm'  145.685
                                    'search_title'  'a':1 'called':5 'little':3 'love':6 'precious':2 'thing':4
                                   'search_artist'  'george':1 'his':3 'olsen':2 'orchestra':4
                                  'search_release'  
                                     'search_rest'  'and':10 'by':15 'called':8 'country':4 'ethel':16 'exotica':2 'his':11 'jazz':1 'jb':20 'little':6 'love':9 'oldies':3 'orchestra':12 'precious':5 'prerock':19 'shutta':17,18 'thing':7 'unsorted':21 'vocal':13,14
                                    'search_combo'  'a':1A 'and':20 'by':25 'called':5A,18 'country':14 'ethel':26 'exotica':12 'george':7B 'his':9B,21 'jazz':11 'jb':30 'little':3A,16 'love':6A,19 'oldies':13 'olsen':8B 'orchestra':10B,22 'precious':2A,15 'prerock':29 'shutta':27,28 'thing':4A,17 'unsorted':31 'vocal':23,24
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-1', 'q-grit-1']
                                      'lastfmtags'  ['big band', '20s', 'jazz', '30s', 'swing']
                                        'tag_date'  1929
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528076.4428463  (2021-05-09 04:41:16)
                             'size'  1846774