======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '234'
                                          'artist'  'Prince'
                                     'text_people'  ''
                                         'release'  'Purple Rain'
                                           'title'  'Take Me with U (1984) (2 of 9)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'rock', 'pop', 'funk']"
                                     'discogstags'  ("['funk / soul', 'pop', 'stage & screen', 'minneapolis sound', 'funk', 'pop "
 "rock']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '122.733'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '720A4709+197537+9+182+21125+'
'COMM:iTunes_CDDB_1:eng'                            '720A4709+197537+9+182+21125+38685+62232+80195+99282+125842+138567+158397'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '2'
'TALB' (Album/Movie/Show title)                     'Purple Rain'
'TBPM' (BPM (beats per minute))                     '122.733'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1985'
'TENC' (Encoded by)                                 'iTunes 11.0.4'
'TIT2' (Title/songname/content description)         'Take Me with U (1984) (2 of 9)'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Prince'
'TPE2' (Band/orchestra/accompaniment)               'Prince'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul',
 'pop',
 'stage & screen',
 'minneapolis sound',
 'funk',
 'pop rock']
'TXXX:lastfmtags'                                   ['80s', 'rock', 'pop', 'funk']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.32 dB'
'TXXX:replaygain_track_peak'                        '0.571536'

========================== row from database ==========================
                                              'id'  1312025
                                            'path'  /data/Music/Bulk/00poprockelectronic/1985 complete/036 Prince & The Revolution Duet With Apollonia - Take Me With U.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  234
                                           'genre'  funk or soul
                                        'filesize'  9551286
                                           'mtime'  1628357911
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1985 complete 036 & The Revolution Duet With Apollonia With funk or soul
                                      'tag_artist'  Prince
                                     'tag_release'  Purple Rain
                                       'tag_title'  Take Me with U (1984) (2 of 9)
                                             'bpm'  122.733
                                    'search_title'  '1984':5,6 '2':7,8 '9':10,11 'me':2 'of':9 'take':1 'u':4 'with':3
                                   'search_artist'  'prince':1
                                  'search_release'  'purple':1 'rain':2
                                     'search_rest'  '00poprockelectronic':1 '1985':2 'apollonia':8 'complete':3 'duet':6 'funk':9 'or':10 'revolution':5 'soul':11 'the':4 'with':7
                                    'search_combo'  '00poprockelectronic':15 '1984':5A,6A '1985':16 '2':7A,8A '9':10A,11A 'apollonia':22 'complete':17 'duet':20 'funk':23 'me':2A 'of':9A 'or':24 'prince':12B 'purple':13C 'rain':14C 'revolution':19 'soul':25 'take':1A 'the':18 'u':4A 'with':3A,21
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['80s', 'rock', 'pop', 'funk']
                                        'tag_date'  1985
                                     'discogstags'  ['funk / soul', 'pop', 'stage & screen', 'minneapolis sound', 'funk', 'pop rock']

============================== file details ==============================
                                           'mtime'  1628357911.3115573  (2021-08-07 19:38:31)
                             'size'  9551286