======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '138'
                                          'artist'  'Emy Jackson & The Smashmen'
                                     'text_people'  ''
                                         'release'  "Emy Jackson & The Smashmen (Nipon 60's)"
                                           'title'  'Blue Christmas'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['japanese', 'garage', 'bells', 'le beat electrique']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;set-th-christmas'
                                             'bpm'  '140.7'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.OTHER (Other) b''
                                     
'TALB' (Album/Movie/Show title)                     "Emy Jackson & The Smashmen (Nipon 60's)"
'TBPM' (BPM (beats per minute))                     '140.7'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'set-th-christmas']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Blue Christmas'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '138840'
'TPE1' (Lead performer(s)/Soloist(s))               'Emy Jackson & The Smashmen'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['japanese', 'garage', 'bells', 'le beat electrique']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.28 dB'
'TXXX:replaygain_track_peak'                        '0.416246'

========================== row from database ==========================
                                              'id'  1533055
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Emy Jackson & The Smashmen (Nipon 60_s)/03 - Blue Christmas.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  138
                                           'genre'  loc-asia-japan;set-th-christmas
                                        'filesize'  2223501
                                           'mtime'  1621509985
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 60_s) 03 loc asia japan;set th christmas
                                      'tag_artist'  Emy Jackson & The Smashmen
                                     'tag_release'  Emy Jackson & The Smashmen (Nipon 60's)
                                       'tag_title'  Blue Christmas
                                             'bpm'  140.7
                                    'search_title'  'blue':1 'christmas':2
                                   'search_artist'  'emy':1 'jackson':2 'smashmen':4 'the':3
                                  'search_release'  '60':7 '60s':9 'emy':1 'jackson':2 'nipon':5,6 's':8 'smashmen':4 'the':3
                                     'search_rest'  '60':1,3 'asia':6 'christmas':12 'japan':7,9 'loc':5 's':2,4 'set':8,10 'th':11
                                    'search_combo'  '60':13C,16,18 '60s':15C 'asia':21 'blue':1A 'christmas':2A,27 'emy':3B,7C 'jackson':4B,8C 'japan':22,24 'loc':20 'nipon':11C,12C 's':14C,17,19 'set':23,25 'smashmen':6B,10C 'th':26 'the':5B,9C
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['japanese', 'garage', 'bells', 'le beat electrique']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621509984.8300576  (2021-05-20 13:26:24)
                             'size'  2223501