======================== unified (from filesystem) ========================
                                         'bitrate'  '176.939'
                                        'duration'  '181'
                                          'artist'  'The Postal Service'
                                     'text_people'  ''
                                         'release'  'Such Great Heights [Single]'
                                           'title'  'We Will Become Silhouettes (performed by The Shins)'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'indie pop', 'alternative', 'electronic']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie'
                                             'bpm'  '135.2'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Such Great Heights [Single]'
'TBPM' (BPM (beats per minute))                     '135.2'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'We Will Become Silhouettes (performed by The Shins)'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Postal Service'
'TRCK' (Track number/Position in set)               '3'
'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'                                  'electronic'
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'alternative', 'electronic']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.09 dB'
'TXXX:replaygain_track_peak'                        '0.462157'

========================== row from database ==========================
                                              'id'  1261670
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/The Postal Service/The Postal Service - [ All B-Sides Singles] 2003/03  - We Will Become Silhouettes (performed by The Shins).mp3
                                         'working'  None
                                         'bitrate'  176
                                    'duration_sec'  181
                                           'genre'  ifs-songwriter-indie
                                        'filesize'  4019551
                                           'mtime'  1636400756
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos All Sides Singles] 2003 03 ifs songwriter indie
                                      'tag_artist'  The Postal Service
                                     'tag_release'  Such Great Heights [Single]
                                       'tag_title'  We Will Become Silhouettes (performed by The Shins)
                                             'bpm'  135.2
                                    'search_title'  'become':3 'by':7 'performed':5,6 'shins':9,10 'silhouettes':4 'the':8 'we':1 'will':2
                                   'search_artist'  'postal':2 'service':3 'the':1
                                  'search_release'  'great':2 'heights':3 'single':4,5 'such':1
                                     'search_rest'  '00singer':1 '2003':8 'all':4 'eos':3 'ifs':9 'indie':10 'sides':5 'singles':6,7 'songwriter':2
                                    'search_combo'  '00singer':19 '2003':26 'all':22 'become':3A 'by':7A 'eos':21 'great':15C 'heights':16C 'ifs':27 'indie':28 'performed':5A,6A 'postal':12B 'service':13B 'shins':9A,10A 'sides':23 'silhouettes':4A 'single':17C,18C 'singles':24,25 'songwriter':20 'such':14C 'the':8A,11B 'we':1A 'will':2A
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'alternative', 'electronic']
                                        'tag_date'  2003
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636400756.051916  (2021-11-08 20:45:56)
                             'size'  4019551