======================== unified (from filesystem) ========================
                                         'bitrate'  '256.256'
                                        'duration'  '222'
                                          'artist'  'Frank Zappa'
                                     'text_people'  ''
                                         'release'  'Sheik Yerbouti'
                                           'title'  'Broken Hearts Are for Assholes'
                                           '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-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'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'  '3'
                                      'tracktotal'  ''
                                            'date'  '1979'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-experimental'
                                             'bpm'  '143.314'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Sheik Yerbouti'
'TBPM' (BPM (beats per minute))                     '143.314'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-experimental'
'TDRC' (Recording time)                             '1979'
'TIT2' (Title/songname/content description)         'Broken Hearts Are for Assholes'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Frank Zappa'
'TRCK' (Track number/Position in set)               '3'
'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'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.59 dB'
'TXXX:replaygain_track_peak'                        '0.708700'

========================== row from database ==========================
                                              'id'  205656
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Frank Zappa/Sheik Yerbouti/MBZ;#Frank Zappa;#Sheik Yerbouti;#03;#Broken Hearts Are for Assholes.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  222
                                           'genre'  ifs-songwriter-experimental
                                        'filesize'  7132639
                                           'mtime'  1636400813
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos MBZ;#Frank Zappa;#Sheik Yerbouti;#03;#Broken ifs songwriter experimental
                                      'tag_artist'  Frank Zappa
                                     'tag_release'  Sheik Yerbouti
                                       'tag_title'  Broken Hearts Are for Assholes
                                             'bpm'  143.314
                                    'search_title'  'are':3 'assholes':5 'broken':1 'for':4 'hearts':2
                                   'search_artist'  'frank':1 'zappa':2
                                  'search_release'  'sheik':1 'yerbouti':2
                                     'search_rest'  '00singer':1 '03':13,16 'broken':14,17 'eos':3 'experimental':19 'frank':5,7 'ifs':18 'mbz':4,6 'sheik':9,11 'songwriter':2 'yerbouti':12,15 'zappa':8,10
                                    'search_combo'  '00singer':10 '03':22,25 'are':3A 'assholes':5A 'broken':1A,23,26 'eos':12 'experimental':28 'for':4A 'frank':6B,14,16 'hearts':2A 'ifs':27 'mbz':13,15 'sheik':8C,18,20 'songwriter':11 'yerbouti':9C,21,24 'zappa':7B,17,19
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-3', 'q-syn-2', 'q-chart-3', 'q-other-2', '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'  1636400812.839754  (2021-11-08 20:46:52)
                             'size'  7132639