======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '411'
                                          'artist'  'Amanda Palmer'
                                     'text_people'  'Amanda Palmer'
                                         'release'  'Piano Is Evil'
                                           'title'  'Berlin'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'Q-PLAY-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-4', 'q-chart-3', 'q-drums-1', 'q-other-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['punk cabaret', 'piano', 'female vocalists', 'alternative', 'singer "
 "songwriter']")
                                     'discogstags'  "['alternative rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '13'
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter;ifs-songwriter-eos'
                                             'bpm'  '115.854'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Piano Is Evil'
'TBPM' (BPM (beats per minute))                     '115.854'
'TCOM' (Composer)                                   'Amanda Palmer'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter', 'ifs-songwriter-eos']
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Berlin'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Amanda Palmer'
'TPE2' (Band/orchestra/accompaniment)               'Amanda Palmer'
'TRCK' (Track number/Position in set)               '8/13'
'TSO2'                                              'Amanda Palmer'
'TSOA' (Album sort order)                           'Piano Is Evil'
'TSOC'                                              'Amanda Palmer'
'TSOP' (Performer sort order)                       'Amanda Palmer'
'TSOT' (Title sort order)                           'Berlin'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf54.63.104'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['alternative rock', 'rock']
'TXXX:lastfmtags'                                   ['punk cabaret',
 'piano',
 'female vocalists',
 'alternative',
 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.79 dB'
'TXXX:replaygain_track_peak'                        '0.349611'

========================== row from database ==========================
                                              'id'  1377162
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/00songwriter-eos/Dresden Dolls & Amanda Palmer/[2016] Piano is Evil/08 Berlin.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  411
                                           'genre'  ifs-songwriter;ifs-songwriter-eos
                                        'filesize'  16494055
                                           'mtime'  1628356187
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 00songwriter eos Dresden Dolls & [2016] is 08 ifs songwriter;ifs songwriter eos
                                      'tag_artist'  Amanda Palmer
                                     'tag_release'  Piano Is Evil
                                       'tag_title'  Berlin
                                             'bpm'  115.854
                                    'search_title'  'berlin':1
                                   'search_artist'  'amanda':1 'palmer':2
                                  'search_release'  'evil':3 'is':2 'piano':1
                                     'search_rest'  '00singer':1 '00songwriter':4 '2016':7,8 'dolls':6 'dresden':5 'eos':3 'ifs':10,12,14 'is':9 'songwriter':2,11,13
                                    'search_combo'  '00singer':7 '00songwriter':10 '2016':13,14 'amanda':2B 'berlin':1A 'dolls':12 'dresden':11 'eos':9 'evil':6C 'ifs':16,18,20 'is':5C,15 'palmer':3B 'piano':4C 'songwriter':8,17,19
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['punk cabaret', 'piano', 'female vocalists', 'alternative', 'singer songwriter']
                                        'tag_date'  2016
                                     'discogstags'  ['alternative rock', 'rock']

============================== file details ==============================
                                           'mtime'  1628356186.6393921  (2021-08-07 19:09:46)
                             'size'  16494055