======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '218'
                                          'artist'  'Blue Cafe'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Baby Baby'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', "
 "'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', "
 "'q-other-2', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['polish', 'pop', 'female vocalists', 'funk', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '136.736'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000AAA 00000B0F 00003D47 00'
'COMM:iTunNORM:eng'                                 (' 00000AAA 00000B0F 00003D47 00003BE4 00022CD3 00022CD3 00007977 00007DAF '
 '00026129 0001C998')
'TBPM' (BPM (beats per minute))                     '136.736'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TIT2' (Title/songname/content description)         'Baby Baby'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Blue Cafe'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['polish', 'pop', 'female vocalists', 'funk', 'soul']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.54 dB'
'TXXX:replaygain_track_peak'                        '0.490956'

========================== row from database ==========================
                                              'id'  1334025
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/blue cafe - baby baby(2).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  218
                                           'genre'  funk or soul
                                        'filesize'  3499819
                                           'mtime'  1628357957
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] blue cafe baby baby(2) funk or soul
                                      'tag_artist'  Blue Cafe
                                     'tag_release'  None
                                       'tag_title'  Baby Baby
                                             'bpm'  136.736
                                    'search_title'  'baby':1
                                   'search_artist'  'blue':1 'cafe':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '2':11 'baby':9,10 'baby2':12 'blue':7 'cafe':8 'files':5,6 'funk':13 'loose':3,4 'or':14 'soul':15 'unsorted':2
                                    'search_combo'  '00poprockelectronic':4 '2':14 'baby':1A,12,13 'baby2':15 'blue':2B,10 'cafe':3B,11 'files':8,9 'funk':16 'loose':6,7 'or':17 'soul':18 'unsorted':5
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-2', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['polish', 'pop', 'female vocalists', 'funk', 'soul']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357957.3953493  (2021-08-07 19:39:17)
                             'size'  3499819