======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '320'
                                          'artist'  'Soft Serve'
                                     'text_people'  ''
                                         'release'  'Good Mood, Bad Mood'
                                           'title'  'transistor radio'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['33', '5432fun']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '121.3'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 000005B3 000005AA 0000A9CA 0000A9CA 00029C5E 00029C5E 00008641 00008665 '
 '00029B8D 00029B8D')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000AC8 0000000000D770A8 00000000 004E21A3 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Good Mood, Bad Mood'
'TBPM' (BPM (beats per minute))                     '121.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2001'
'TENC' (Encoded by)                                 'iTunes 8.0.2.20'
'TIT2' (Title/songname/content description)         'transistor radio'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Soft Serve'
'TRCK' (Track number/Position in set)               '7'
'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'
'TXXX:lastfmtags'                                   ['33', '5432fun']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.86 dB'
'TXXX:replaygain_track_peak'                        '0.559803'

========================== row from database ==========================
                                              'id'  1380317
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Soft Serve - 2001 - good mood, bad mood/07 - transistor radio.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  320
                                           'genre'  electronic-unsorted
                                        'filesize'  5134686
                                           'mtime'  1636473329
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 2001 good mood, bad mood 07 electronic unsorted
                                      'tag_artist'  Soft Serve
                                     'tag_release'  Good Mood, Bad Mood
                                       'tag_title'  transistor radio
                                             'bpm'  121.3
                                    'search_title'  'radio':2 'transistor':1
                                   'search_artist'  'serve':2 'soft':1
                                  'search_release'  'bad':4 'good':1 'mood':2,3
                                     'search_rest'  '2001':1 'bad':5 'electronic':6 'good':2 'mood':3,4 'unsorted':7
                                    'search_combo'  '2001':9 'bad':8C,13 'electronic':14 'good':5C,10 'mood':6C,7C,11,12 'radio':2A 'serve':4B 'soft':3B 'transistor':1A 'unsorted':15
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['33', '5432fun']
                                        'tag_date'  2001
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636473329.0909407  (2021-11-09 16:55:29)
                             'size'  5134686