======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '195'
                                          'artist'  'Arthur Schutt'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'I Love A Piano -'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-1', 'q-busy-3', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-1', 'q-other-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', '1934', '2 of 10 stars', 'spotify']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-instrumental'
                                             'bpm'  '141.4'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.OTHER (Other) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'COMM:MusicMatch_Tempo:eng'                         'None'
'TBPM' (BPM (beats per minute))                     '141.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-instrumental'
'TDRC' (Recording time)                             '1934'
'TIT2' (Title/songname/content description)         'I Love A Piano -'
'TKEY' (Initial key)                                '11A'
'TLEN' (Length)                                     '195000'
'TPE1' (Lead performer(s)/Soloist(s))               'Arthur Schutt'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['all', '1934', '2 of 10 stars', 'spotify']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.90 dB'
'TXXX:replaygain_track_peak'                        '0.924180'

========================== row from database ==========================
                                              'id'  1464481
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/Arthur Schutt - I Love A Piano 1934.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  195
                                           'genre'  prerock-instrumental
                                        'filesize'  3949572
                                           'mtime'  1621705382
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 1934 prerock instrumental
                                      'tag_artist'  Arthur Schutt
                                     'tag_release'  None
                                       'tag_title'  I Love A Piano -
                                             'bpm'  141.4
                                    'search_title'  'a':3 'i':1 'love':2 'piano':4
                                   'search_artist'  'arthur':1 'schutt':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1934':6 'country':4 'exotica':2 'instrumental':8 'jazz':1 'oldies':3 'prerock':7
                                    'search_combo'  '00oldiepop':11 '1934':12 'a':3A 'arthur':5B 'country':10 'exotica':8 'i':1A 'instrumental':14 'jazz':7 'love':2A 'oldies':9 'piano':4A 'prerock':13 'schutt':6B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['all', '1934', '2 of 10 stars', 'spotify']
                                        'tag_date'  1934
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1621705382.3917558  (2021-05-22 19:43:02)
                             'size'  3949572