======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '123'
                                          'artist'  'Harold Budd'
                                     'text_people'  ''
                                         'release'  'Perhaps'
                                           'title'  'Nec Spero'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'Q-PLAY-3', 'q-syn-3', 'q-bass-1', 'q-busy-1', 'q-grit-1', "
 "'Q-PIANO-4', 'q-chart-3', 'q-drums-1', 'q-other-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['minimalism', 'piano', 'atmospheric', 'minimal', 'ambient']"
                                     'discogstags'  ("['jazz', 'classical', 'modern classical', 'minimal', 'free improvisation', "
 "'ambient']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'electronic-ambient'
                                             'bpm'  '141.5'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Perhaps'
'TBPM' (BPM (beats per minute))                     '141.5'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient'
'TDRC' (Recording time)                             '2013'
'TIT2' (Title/songname/content description)         'Nec Spero'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Harold Budd'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'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'                                  ['jazz',
 'classical',
 'modern classical',
 'minimal',
 'free improvisation',
 'ambient']
'TXXX:lastfmtags'                                   ['minimalism', 'piano', 'atmospheric', 'minimal', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '1'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.43 dB'
'TXXX:replaygain_track_peak'                        '0.568436'

========================== row from database ==========================
                                              'id'  1373221
                                            'path'  /data/Music/Bulk/00poprockelectronic/00ambient/Harold Budd - Perhaps/05 Nec Spero.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  123
                                           'genre'  electronic-ambient
                                        'filesize'  5411885
                                           'mtime'  1636910660
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00ambient 05 electronic ambient
                                      'tag_artist'  Harold Budd
                                     'tag_release'  Perhaps
                                       'tag_title'  Nec Spero
                                             'bpm'  141.5
                                    'search_title'  'nec':1 'spero':2
                                   'search_artist'  'budd':2 'harold':1
                                  'search_release'  'perhaps':1
                                     'search_rest'  '00ambient':2 '00poprockelectronic':1 'ambient':4 'electronic':3
                                    'search_combo'  '00ambient':7 '00poprockelectronic':6 'ambient':9 'budd':4B 'electronic':8 'harold':3B 'nec':1A 'perhaps':5C 'spero':2A
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-1', 'q-drums-1', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['minimalism', 'piano', 'atmospheric', 'minimal', 'ambient']
                                        'tag_date'  2013
                                     'discogstags'  ['jazz', 'classical', 'modern classical', 'minimal', 'free improvisation', 'ambient']

============================== file details ==============================
                                           'mtime'  1636910660.4595108  (2021-11-14 18:24:20)
                             'size'  5411885