======================== unified (from filesystem) ========================
                                         'bitrate'  '167.766'
                                        'duration'  '143'
                                          'artist'  'Cycle Sluts From Hell'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'I Wish You Were A Beer'
                                           'quals'  ("['Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['hard rock', 'heavy metal', 'female fronted metal', 'metal', 'thrash metal']"
                                     'discogstags'  "['rock', 'glam', 'heavy metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '146.000'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'I Wish You Were A Beer'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cycle Sluts From Hell'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'glam', 'heavy metal']
'TXXX:lastfmtags'                                   ['hard rock', 'heavy metal', 'female fronted metal', 'metal', 'thrash metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.24 dB'
'TXXX:replaygain_track_peak'                        '0.633401'

========================== row from database ==========================
                                              'id'  1351878
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/Cycle Sluts From Hell - I Wish You Were A Beer.mp3
                                         'working'  None
                                         'bitrate'  167
                                    'duration_sec'  143
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  3026944
                                           'mtime'  1620566820
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s electronic generic or radio unsorted
                                      'tag_artist'  Cycle Sluts From Hell
                                     'tag_release'  None
                                       'tag_title'  I Wish You Were A Beer
                                             'bpm'  146.0
                                    'search_title'  'a':5 'beer':6 'i':1 'were':4 'wish':2 'you':3
                                   'search_artist'  'cycle':1 'from':3 'hell':4 'sluts':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '90s':2 'electronic':3 'generic':4 'or':5 'radio':6 'unsorted':7
                                    'search_combo'  '00poprockelectronic':11 '90s':12 'a':5A 'beer':6A 'cycle':7B 'electronic':13 'from':9B 'generic':14 'hell':10B 'i':1A 'or':15 'radio':16 'sluts':8B 'unsorted':17 'were':4A 'wish':2A 'you':3A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['hard rock', 'heavy metal', 'female fronted metal', 'metal', 'thrash metal']
                                        'tag_date'  1995
                                     'discogstags'  ['rock', 'glam', 'heavy metal']

============================== file details ==============================
                                           'mtime'  1620566820.2717986  (2021-05-09 15:27:00)
                             'size'  3026944