======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '281'
                                          'artist'  'Boston'
                                     'text_people'  ''
                                         'release'  "MTV Rock Clasico 70's & 80's"
                                           'title'  'More Than A Feeling'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['70s', 'rock', '80s', 'hard rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '15'
                                            'date'  '1976'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '145.267'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '15+4B8C3717800EB8160909B45E1'
'PRIV:AverageLevel:{\x1f\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x1f\x00\x00')
'PRIV:PeakValue:¡\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xa1\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     "MTV Rock Clasico 70's & 80's"
'TBPM' (BPM (beats per minute))                     '145.267'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1976'
'TENC' (Encoded by)                                 'iTunes v4.9.0.17'
'TIT2' (Title/songname/content description)         'More Than A Feeling'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Boston'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '1/15'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['70s', 'rock', '80s', 'hard rock', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.03 dB'
'TXXX:replaygain_track_peak'                        '0.397696'

========================== row from database ==========================
                                              'id'  1285698
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/01 more than a feeling(2).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  281
                                           'genre'  rock-cppex
                                        'filesize'  6751188
                                           'mtime'  1620737389
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 01 more than feeling(2) rock cppex
                                      'tag_artist'  Boston
                                     'tag_release'  MTV Rock Clasico 70's & 80's
                                       'tag_title'  More Than A Feeling
                                             'bpm'  145.267
                                    'search_title'  'a':3 'feeling':4 'more':1 'than':2
                                   'search_artist'  'boston':1
                                  'search_release'  '70':4 '70s':6 '80':7 '80s':9 'clasico':3 'mtv':1 'rock':2 's':5,8
                                     'search_rest'  '00poprockelectronic':1 '2':10 'cppex':13 'feeling':9 'feeling2':11 'files':5,6 'loose':3,4 'more':7 'rock':12 'than':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':15 '2':24 '70':9C '70s':11C '80':12C '80s':14C 'a':3A 'boston':5B 'clasico':8C 'cppex':27 'feeling':4A,23 'feeling2':25 'files':19,20 'loose':17,18 'more':1A,21 'mtv':6C 'rock':7C,26 's':10C,13C 'than':2A,22 'unsorted':16
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['70s', 'rock', '80s', 'hard rock', 'classic rock']
                                        'tag_date'  1976
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737389.1005116  (2021-05-11 14:49:49)
                             'size'  6751188