======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '114'
                                          'artist'  'Harry Roy'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "i'm gonna kiss myself, goodbye"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', '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'  "['jazz', 'big band', 'british', 'swing']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '93.285'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TBPM' (BPM (beats per minute))                     '93.285'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         "i'm gonna kiss myself, goodbye"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Harry Roy'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['jazz', 'big band', 'british', 'swing']
'TXXX:other'                                        'harry roy and his mayfair hotel orchestra'
'TXXX:q-bass'                                       '2'
'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'                        '+2.18 dB'
'TXXX:replaygain_track_peak'                        '0.488775'

========================== row from database ==========================
                                              'id'  1533660
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/30_s collection/harry roy and his mayfair hotel orchestra - i_m gonna kiss myself, goodbye.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  114
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  1849344
                                           'mtime'  1620527884
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 30_s collection harry roy and his mayfair hotel orchestra i_m prerock jb jazz unsorted
                                      'tag_artist'  Harry Roy
                                     'tag_release'  None
                                       'tag_title'  i'm gonna kiss myself, goodbye
                                             'bpm'  93.285
                                    'search_title'  'gonna':4 'goodbye':8 'i':1 'im':3 'kiss':5 'm':2 'myself':6,7
                                   'search_artist'  'harry':1 'roy':2
                                  'search_release'  
                                     'search_rest'  '30':5 'and':10 'collection':7 'country':4 'exotica':2 'harry':8 'his':11 'hotel':13 'i':15 'jazz':1 'jb':18 'm':16 'mayfair':12 'oldies':3 'orchestra':14 'prerock':17 'roy':9 's':6 'unsorted':19
                                    'search_combo'  '30':15 'and':20 'collection':17 'country':14 'exotica':12 'gonna':4A 'goodbye':8A 'harry':9B,18 'his':21 'hotel':23 'i':1A,25 'im':3A 'jazz':11 'jb':28 'kiss':5A 'm':2A,26 'mayfair':22 'myself':6A,7A 'oldies':13 'orchestra':24 'prerock':27 'roy':10B,19 's':16 'unsorted':29
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', '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-2', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'big band', 'british', 'swing']
                                        'tag_date'  1935
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620527883.6650577  (2021-05-09 04:38:03)
                             'size'  1849344