======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '342'
                                          'artist'  'Wah Wah Watson'
                                     'text_people'  'Wah Wah Watson'
                                         'release'  'Elementary'
                                           'title'  'Goo goo wah wah'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-3', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['guitar', 'jazz funk', 'soul', 'funk', '70s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '1976'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '105.3'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Elementary'
'TBPM' (BPM (beats per minute))                     '105.3'
'TCOM' (Composer)                                   'Wah Wah Watson'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1976'
'TIT2' (Title/songname/content description)         'Goo goo wah wah'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Wah Wah Watson'
'TPE2' (Band/orchestra/accompaniment)               'Wah Wah Watson'
'TRCK' (Track number/Position in set)               '01'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['guitar', 'jazz funk', 'soul', 'funk', '70s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-7.96 dB'
'TXXX:replaygain_track_peak'                        '1.056918'

========================== row from database ==========================
                                              'id'  1457206
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/Elementary [1976] (2012 remaster) fct/01 - Goo goo wah wah.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  342
                                           'genre'  funk or soul
                                        'filesize'  13731073
                                           'mtime'  1622756535
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul [1976] (2012 remaster) fct 01 funk or soul
                                      'tag_artist'  Wah Wah Watson
                                     'tag_release'  Elementary
                                       'tag_title'  Goo goo wah wah
                                             'bpm'  105.3
                                    'search_title'  'goo':1 'wah':2
                                   'search_artist'  'wah':1 'watson':2
                                  'search_release'  'elementary':1
                                     'search_rest'  '1976':4,5 '2012':6,7 'fct':10 'funk':2 'or':11 'remaster':8,9 'soul':3 'swing':1
                                    'search_combo'  '1976':9,10 '2012':11,12 'elementary':5C 'fct':15 'funk':7 'goo':1A 'or':16 'remaster':13,14 'soul':8 'swing':6 'wah':2A,3B 'watson':4B
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['guitar', 'jazz funk', 'soul', 'funk', '70s']
                                        'tag_date'  1976
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622756534.781966  (2021-06-03 23:42:14)
                             'size'  13731073