======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '256'
                                          'artist'  'Sting'
                                     'text_people'  ''
                                         'release'  'Progsoup 30'
                                           'title'  'If You Love Somebody Set Them Free'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['classic rock', 'singer songwriter', 'british', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '83'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '125.548'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Progsoup 30'
'TBPM' (BPM (beats per minute))                     '125.548'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'If You Love Somebody Set Them Free'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sting'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '83'
'TXXX:Mp3gain_minmax'                               '024,208'
'TXXX:Mp3gain_undo'                                 '+002,+002,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['classic rock', 'singer songwriter', 'british', 'pop', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.39 dB'
'TXXX:replaygain_track_peak'                        '0.721892'

========================== row from database ==========================
                                              'id'  1413131
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 30 (hitsoup)/1749 Sting - 1 - If You Love Somebody Set Them Free.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  256
                                           'genre'  rock-cppex-progressive
                                        'filesize'  10255070
                                           'mtime'  1620737119
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup (hitsoup) 1749 1 rock cppex progressive
                                      'tag_artist'  Sting
                                     'tag_release'  Progsoup 30
                                       'tag_title'  If You Love Somebody Set Them Free
                                             'bpm'  125.548
                                    'search_title'  'free':7 'if':1 'love':3 'set':5 'somebody':4 'them':6 'you':2
                                   'search_artist'  'sting':1
                                  'search_release'  '30':2 'progsoup':1
                                     'search_rest'  '1':6 '1749':5 'classicprogpsy':1 'cppex':8 'hitsoup':3,4 'progressive':9 'progsoup':2 'rock':7
                                    'search_combo'  '1':16 '1749':15 '30':10C 'classicprogpsy':11 'cppex':18 'free':7A 'hitsoup':13,14 'if':1A 'love':3A 'progressive':19 'progsoup':9C,12 'rock':17 'set':5A 'somebody':4A 'sting':8B 'them':6A 'you':2A
                                    'tag_tracknum'  83
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', 'singer songwriter', 'british', 'pop', 'rock']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737118.7541702  (2021-05-11 14:45:18)
                             'size'  10255070