======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '166'
                                          'artist'  'The Roger Webb Sound'
                                     'text_people'  ''
                                         'release'  'De Wolfe Compilation'
                                           'title'  'Follow On Fast'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lounge', 'dreamy', 'library', 'british', 'easy listening']"
                                     'discogstags'  "['jazz', 'stage & screen']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '30'
                                      'tracktotal'  '35'
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '97.6'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00000858 00000858 000038B8 000038B8 00003BE5 00003BE5 00008076 00008076 '
 '00023FB6 00023FB6')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000007D4 0000000000703B9C 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            'C5119B23+338214+35+150+10245+22568+30964+48067+61097+70856+77892+88598+100636+111042+114048+123660+127712+135724+146367+169145+179264+189862+198102+207923+213010+225088+233629+245035+252213+260162+271595+285106+296799+309308+322906+328764+331343+336218'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '30'
'TALB' (Album/Movie/Show title)                     'De Wolfe Compilation'
'TBPM' (BPM (beats per minute))                     '97.6'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1970'
'TENC' (Encoded by)                                 'iTunes v6.0.5'
'TIT2' (Title/songname/content description)         'Follow On Fast'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Roger Webb Sound'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '30/35'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'stage & screen']
'TXXX:lastfmtags'                                   ['lounge', 'dreamy', 'library', 'british', 'easy listening']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.95 dB'
'TXXX:replaygain_track_peak'                        '0.595685'
'TXXX:tracknum'                                     '30'

========================== row from database ==========================
                                              'id'  1383162
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/The London Studio Group Pink Sauce - VA - De Wolfe compilation 1969-71/Follow On Fast (The Roger Webb Sound- -Free As Air- - DWLP 3212 mono, 1971).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  166
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  6675872
                                           'mtime'  1620536400
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country London Studio Group Pink Sauce VA compilation 1969 71 (The Free As Air DWLP 3212 mono, 1971) prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  The Roger Webb Sound
                                     'tag_release'  De Wolfe Compilation
                                       'tag_title'  Follow On Fast
                                             'bpm'  97.6
                                    'search_title'  'fast':3 'follow':1 'on':2
                                   'search_artist'  'roger':2 'sound':4 'the':1 'webb':3
                                  'search_release'  'compilation':3 'de':1 'wolfe':2
                                     'search_rest'  '1969':12 '1971':23,24 '3212':20 '71':13 'air':18 'as':17 'bossa':29 'compilation':11 'country':4 'dwlp':19 'exotica':2 'free':16 'group':7 'jazz':1 'jb':26 'london':5 'lounge':27 'mono':21,22 'oldies':3 'or':28 'pink':8 'prerock':25 'sauce':9 'studio':6 'the':14,15 'va':10
                                    'search_combo'  '1969':22 '1971':33,34 '3212':30 '71':23 'air':28 'as':27 'bossa':39 'compilation':10C,21 'country':14 'de':8C 'dwlp':29 'exotica':12 'fast':3A 'follow':1A 'free':26 'group':17 'jazz':11 'jb':36 'london':15 'lounge':37 'mono':31,32 'oldies':13 'on':2A 'or':38 'pink':18 'prerock':35 'roger':5B 'sauce':19 'sound':7B 'studio':16 'the':4B,24,25 'va':20 'webb':6B 'wolfe':9C
                                    'tag_tracknum'  30
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['lounge', 'dreamy', 'library', 'british', 'easy listening']
                                        'tag_date'  1970
                                     'discogstags'  ['jazz', 'stage & screen']

============================== file details ==============================
                                           'mtime'  1620536399.5288002  (2021-05-09 06:59:59)
                             'size'  6675872