======================== unified (from filesystem) ========================
                                         'bitrate'  '128.593'
                                        'duration'  '234'
                                          'artist'  'Big City Orchestra'
                                     'text_people'  ''
                                         'release'  'Shirley & Spinoza'
                                           'title'  'Risky Safety'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  ("['industrial', 'noise', 'avant garde', 'experimental', 'old school "
 "industrial']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '127.444'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '127.444'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Risky Safety'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Big City Orchestra'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['industrial', 'noise', 'avant garde', 'experimental', 'old school industrial']
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.10 dB'
'TXXX:replaygain_track_peak'                        '0.724411'

========================== row from database ==========================
                                              'id'  948944
                                            'path'  /data/Music/Bulk/sns/Big City Orchestra - Risky Safety.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  234
                                           'genre'  set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  3777089
                                           'mtime'  1621472791
                                   'redo_metaread'  0
                                        'rest_str'   sns set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Big City Orchestra
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  Risky Safety
                                             'bpm'  127.444
                                    'search_title'  'risky':1 'safety':2
                                   'search_artist'  'big':1 'city':2 'orchestra':3
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  'mor':8 'pl':3 'set':2,5,7 'shirleyspinoza':4,6 'sns':1
                                    'search_combo'  'big':3B 'city':4B 'mor':15 'orchestra':5B 'pl':10 'risky':1A 'safety':2A 'set':9,12,14 'shirley':6C 'shirleyspinoza':11,13 'sns':8 'spinoza':7C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'noise', 'avant garde', 'experimental', 'old school industrial']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621472790.8497922  (2021-05-20 03:06:30)
                             'size'  3777089