======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '259'
                                          'artist'  'AWOLNATION'
                                     'text_people'  ''
                                         'release'  'Billboard Hot 100'
                                           'title'  'Sail'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-1', "
 "'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-3']")
                                      'lastfmtags'  "['indie rock', 'indie', 'rock', 'alternative', 'electronic', 'chill']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '119.900'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Billboard Hot 100'
'TBPM' (BPM (beats per minute))                     '119.900'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         'Sail'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'AWOLNATION'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie rock', 'indie', 'rock', 'alternative', 'electronic', 'chill']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.62 dB'
'TXXX:replaygain_track_peak'                        '0.521047'

========================== row from database ==========================
                                              'id'  1348490
                                            'path'  /data/Music/Bulk/00poprockelectronic/set/Awolnation - Sail.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  259
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  10518129
                                           'mtime'  1620573852
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic set Awolnation electronic generic or radio dance
                                      'tag_artist'  AWOLNATION
                                     'tag_release'  Billboard Hot 100
                                       'tag_title'  Sail
                                             'bpm'  119.9
                                    'search_title'  'sail':1
                                   'search_artist'  'awolnation':1
                                  'search_release'  '100':3 'billboard':1 'hot':2
                                     'search_rest'  '00poprockelectronic':1 'awolnation':3 'dance':8 'electronic':4 'generic':5 'or':6 'radio':7 'set':2
                                    'search_combo'  '00poprockelectronic':6 '100':5C 'awolnation':2B,8 'billboard':3C 'dance':13 'electronic':9 'generic':10 'hot':4C 'or':11 'radio':12 'sail':1A 'set':7
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie rock', 'indie', 'rock', 'alternative', 'electronic', 'chill']
                                        'tag_date'  2011
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573851.9120536  (2021-05-09 17:24:11)
                             'size'  10518129