======================== unified (from filesystem) ========================
                                         'bitrate'  '244.067'
                                        'duration'  '211'
                                          'artist'  'Frank Zappa'
                                     'text_people'  ''
                                         'release'  'Sheik Yerbouti'
                                           'title'  "Tryin' to Grow a Chin "
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-OLDST-2', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']"
                                     'discogstags'  "['rock', 'punk', 'pop rock', 'prog rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1979'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-experimental'
                                             'bpm'  '117.740'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Sheik Yerbouti'
'TBPM' (BPM (beats per minute))                     '117.740'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-experimental'
'TDRC' (Recording time)                             '1979'
'TIT2' (Title/songname/content description)         "Tryin' to Grow a Chin "
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '210000'
'TPE1' (Lead performer(s)/Soloist(s))               'Frank Zappa'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'punk', 'pop rock', 'prog rock']
'TXXX:lastfmtags'                                   ['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.34 dB'
'TXXX:replaygain_track_peak'                        '0.598852'

========================== row from database ==========================
                                              'id'  1502595
                                            'path'  /data/Music/Bulk/00poprockelectronic/Frank Zappa/Sheik Yerbouti/13 - Tryin_ To Grow A Chin.mp3
                                         'working'  None
                                         'bitrate'  244
                                    'duration_sec'  211
                                           'genre'  ifs-songwriter-experimental
                                        'filesize'  6462799
                                           'mtime'  1636757603
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 13 Tryin_ To A ifs songwriter experimental
                                      'tag_artist'  Frank Zappa
                                     'tag_release'  Sheik Yerbouti
                                       'tag_title'  Tryin' to Grow a Chin 
                                             'bpm'  117.74
                                    'search_title'  'a':5 'chin':6 'grow':4 'to':3 'tryin':1,2
                                   'search_artist'  'frank':1 'zappa':2
                                  'search_release'  'sheik':1 'yerbouti':2
                                     'search_rest'  '00poprockelectronic':1 'a':4 'experimental':7 'ifs':5 'songwriter':6 'to':3 'tryin':2
                                    'search_combo'  '00poprockelectronic':11 'a':5A,14 'chin':6A 'experimental':17 'frank':7B 'grow':4A 'ifs':15 'sheik':9C 'songwriter':16 'to':3A,13 'tryin':1A,2A,12 'yerbouti':10C 'zappa':8B
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']
                                        'tag_date'  1979
                                     'discogstags'  ['rock', 'punk', 'pop rock', 'prog rock']

============================== file details ==============================
                                           'mtime'  1636757603.1751044  (2021-11-12 23:53:23)
                             'size'  6462799