======================== unified (from filesystem) ========================
                                         'bitrate'  '216.147'
                                        'duration'  '161'
                                          'artist'  'Bitter Ruin'
                                     'text_people'  ''
                                         'release'  "We're Not Dancing"
                                           'title'  "I'm Going to Be a Murderer"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['all', 'female vocalists', 'dark cabaret', 'acoustic', 'alternative', "
 "'cabaret']")
                                     'discogstags'  "['rock', 'vocal', 'indie rock', 'ethereal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '6'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '130.650'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     "We're Not Dancing"
'TBPM' (BPM (beats per minute))                     '130.650'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TCOP' (Copyright message)                          '2008 Bitter Ruin Records'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         "I'm Going to Be a Murderer"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bitter Ruin'
'TPE2' (Band/orchestra/accompaniment)               'Bitter Ruin'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '4/6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'vocal', 'indie rock', 'ethereal']
'TXXX:lastfmtags'                                   ['all',
 'female vocalists',
 'dark cabaret',
 'acoustic',
 'alternative',
 'cabaret']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.88 dB'
'TXXX:replaygain_track_peak'                        '0.486645'

========================== row from database ==========================
                                              'id'  1528648
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Bitter Ruin - [2008] We_re Not Dancing/04 I_m Going to Be a Murderer.mp3
                                         'working'  None
                                         'bitrate'  216
                                    'duration_sec'  161
                                           'genre'  ifs-songwriter
                                        'filesize'  4417075
                                           'mtime'  1637328859
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos [2008] We_re 04 I_m ifs songwriter
                                      'tag_artist'  Bitter Ruin
                                     'tag_release'  We're Not Dancing
                                       'tag_title'  I'm Going to Be a Murderer
                                             'bpm'  130.65
                                    'search_title'  'a':7 'be':6 'going':4 'i':1 'im':3 'm':2 'murderer':8 'to':5
                                   'search_artist'  'bitter':1 'ruin':2
                                  'search_release'  'dancing':5 'not':4 're':2 'we':1 'were':3
                                     'search_rest'  '00singer':1 '2008':4,5 'eos':3 'i':8 'ifs':10 'm':9 're':7 'songwriter':2 'we':6
                                    'search_combo'  '00singer':16 '2008':19,20 'a':7A 'be':6A 'bitter':9B 'dancing':15C 'eos':18 'going':4A 'i':1A,23 'ifs':25 'im':3A 'm':2A,24 'murderer':8A 'not':14C 're':12C,22 'ruin':10B 'songwriter':17 'to':5A 'we':11C,21 'were':13C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['all', 'female vocalists', 'dark cabaret', 'acoustic', 'alternative', 'cabaret']
                                        'tag_date'  2008
                                     'discogstags'  ['rock', 'vocal', 'indie rock', 'ethereal']

============================== file details ==============================
                                           'mtime'  1637328859.4585075  (2021-11-19 14:34:19)
                             'size'  4417075