======================== unified (from filesystem) ========================
                                         'bitrate'  '113.758'
                                        'duration'  '246'
                                          'artist'  '13th Floor Elevators'
                                     'text_people'  ''
                                         'release'  'Music PM'
                                           'title'  'Slip Inside This House (A-side IA#122 mono 45 rpm)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['garage rock', 'psychedelic rock', '60s', 'psychedelic', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf'
                                             'bpm'  '128.7'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Music PM'
'TBPM' (BPM (beats per minute))                     '128.7'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-surf'
'TDRC' (Recording time)                             '2009'
'TENC' (Encoded by)                                 'lame'
'TIT2' (Title/songname/content description)         'Slip Inside This House (A-side IA#122 mono 45 rpm)'
'TKEY' (Initial key)                                '10B'
'TLAN' (Language(s))                                'english'
'TPE1' (Lead performer(s)/Soloist(s))               '13th Floor Elevators'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['garage rock', 'psychedelic rock', '60s', 'psychedelic', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.39 dB'
'TXXX:replaygain_track_peak'                        '0.420782'

========================== row from database ==========================
                                              'id'  725495
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/music pm/13th Floor Elevators - Slip Inside This House (A-side IA#122 mono 45 rpm).mp3
                                         'working'  None
                                         'bitrate'  113
                                    'duration_sec'  246
                                           'genre'  rock-pop-surf
                                        'filesize'  3516828
                                           'mtime'  1620736819
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm music rock pop surf
                                      'tag_artist'  13th Floor Elevators
                                     'tag_release'  Music PM
                                       'tag_title'  Slip Inside This House (A-side IA#122 mono 45 rpm)
                                             'bpm'  128.7
                                    'search_title'  '122':9,11 '45':13 'a':5 'aside':7 'house':4 'ia':8,10 'inside':2 'mono':12 'rpm':14,15 'side':6 'slip':1 'this':3
                                   'search_artist'  '13th':1 'elevators':3 'floor':2
                                  'search_release'  'music':1 'pm':2
                                     'search_rest'  'music':1 'pop':3 'rock':2 'surf':4
                                    'search_combo'  '122':9A,11A '13th':16B '45':13A 'a':5A 'aside':7A 'elevators':18B 'floor':17B 'house':4A 'ia':8A,10A 'inside':2A 'mono':12A 'music':19C,21 'pm':20C 'pop':23 'rock':22 'rpm':14A,15A 'side':6A 'slip':1A 'surf':24 'this':3A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['garage rock', 'psychedelic rock', '60s', 'psychedelic', 'rock']
                                        'tag_date'  2009
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620736819.076428  (2021-05-11 14:40:19)
                             'size'  3516828