======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '171'
                                          'artist'  'They Might Be Giants'
                                     'text_people'  ''
                                         'release'  'They Might Be Giants'
                                           'title'  'Youth Culture Killed My Dog'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['quirky', 'alternative', 'rock', 'pop', 'happy']"
                                     'discogstags'  "['rock', 'alternative rock', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'rock-nerd'
                                             'bpm'  '99.2'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'APIC:Cover Image'                                  type PictureType.COVER_FRONT (Cover (front)) b'Cover Image'
                                     
'POPM:'                                             POPM(email='', rating=153, count=0)
'TALB' (Album/Movie/Show title)                     'They Might Be Giants'
'TBPM' (BPM (beats per minute))                     '99.2'
'TCON' (Content type, a.k.a. Genre)                 'rock-nerd'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         'Youth Culture Killed My Dog'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'They Might Be Giants'
'TRCK' (Track number/Position in set)               '12'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'alternative rock', 'pop rock']
'TXXX:lastfmtags'                                   ['quirky', 'alternative', 'rock', 'pop', 'happy']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.43 dB'
'TXXX:replaygain_track_peak'                        '0.791232'

========================== row from database ==========================
                                              'id'  1474395
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/They Might Be Giants/MBZ;#They Might Be Giants;#They Might Be Giants;#12;#Youth Culture Killed My Dog.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  171
                                           'genre'  rock-nerd
                                        'filesize'  2795567
                                           'mtime'  1621786438
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock MBZ;#They Giants;#They Giants;#12;#Youth rock nerd
                                      'tag_artist'  They Might Be Giants
                                     'tag_release'  They Might Be Giants
                                       'tag_title'  Youth Culture Killed My Dog
                                             'bpm'  99.2
                                    'search_title'  'culture':2 'dog':5 'killed':3 'my':4 'youth':1
                                   'search_artist'  'be':3 'giants':4 'might':2 'they':1
                                  'search_release'  'be':3 'giants':4 'might':2 'they':1
                                     'search_rest'  '00poprockelectronic':1 '12':13,16 'giants':8,10,12,15 'indierock':3 'mbz':4,6 'nerd':19 'poprock':2 'rock':18 'they':5,7,9,11 'youth':14,17
                                    'search_combo'  '00poprockelectronic':14 '12':26,29 'be':8B,12C 'culture':2A 'dog':5A 'giants':9B,13C,21,23,25,28 'indierock':16 'killed':3A 'mbz':17,19 'might':7B,11C 'my':4A 'nerd':32 'poprock':15 'rock':31 'they':6B,10C,18,20,22,24 'youth':1A,27,30
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['quirky', 'alternative', 'rock', 'pop', 'happy']
                                        'tag_date'  1986
                                     'discogstags'  ['rock', 'alternative rock', 'pop rock']

============================== file details ==============================
                                           'mtime'  1621786438.336731  (2021-05-23 18:13:58)
                             'size'  2795567