======================== unified (from filesystem) ========================
                                         'bitrate'  '187.463'
                                        'duration'  '418'
                                          'artist'  'Dire Straits'
                                     'text_people'  ''
                                         'release'  'Brothers In Arms'
                                           'title'  'Ride Across The River'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['80s', 'guitar', 'blues', 'rock', 'classic rock']"
                                     'discogstags'  "['rock', 'classic rock', 'pop rock', 'soft rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '9'
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '142.809'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 0000039F 000001E2 00007127'
'COMM:iTunNORM:eng'                                 (' 0000039F 000001E2 00007127 00003A5F 00030B2F 0004BBA1 00008668 000084DC '
 '00011ADB 00011ADB')
'COMM:iTunes_CDDB_IDs:eng'                          '9+53C8FA615EB333996B029537E1DEE05C+782191'
'TALB' (Album/Movie/Show title)                     'Brothers In Arms'
'TBPM' (BPM (beats per minute))                     '142.809'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDRC' (Recording time)                             '1985'
'TENC' (Encoded by)                                 'iTunes v3.0.1'
'TIT2' (Title/songname/content description)         'Ride Across The River'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dire Straits'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '6/9'
'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'                                  ['rock', 'classic rock', 'pop rock', 'soft rock']
'TXXX:lastfmtags'                                   ['80s', 'guitar', 'blues', 'rock', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.49 dB'
'TXXX:replaygain_track_peak'                        '0.740204'

========================== row from database ==========================
                                              'id'  1413957
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Dire Straits/Brothers In Arms/Dire Straits - Ride Across the River.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  418
                                           'genre'  rock-cppex-classic
                                        'filesize'  9802086
                                           'mtime'  1636038697
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy rock cppex classic
                                      'tag_artist'  Dire Straits
                                     'tag_release'  Brothers In Arms
                                       'tag_title'  Ride Across The River
                                             'bpm'  142.809
                                    'search_title'  'across':2 'ride':1 'river':4 'the':3
                                   'search_artist'  'dire':1 'straits':2
                                  'search_release'  'arms':3 'brothers':1 'in':2
                                     'search_rest'  'classic':4 'classicprogpsy':1 'cppex':3 'rock':2
                                    'search_combo'  'across':2A 'arms':9C 'brothers':7C 'classic':13 'classicprogpsy':10 'cppex':12 'dire':5B 'in':8C 'ride':1A 'river':4A 'rock':11 'straits':6B 'the':3A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'guitar', 'blues', 'rock', 'classic rock']
                                        'tag_date'  1985
                                     'discogstags'  ['rock', 'classic rock', 'pop rock', 'soft rock']

============================== file details ==============================
                                           'mtime'  1636038697.368882  (2021-11-04 16:11:37)
                             'size'  9802086