======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '370'
                                          'artist'  'Cameo'
                                     'text_people'  'Larry Blackman/Larry Blackmon'
                                         'release'  'Nasty'
                                           'title'  'Why Have I Lost You'
                                           'quals'  ("['Q-HAP-4', 'Q-LOCALNESS-1', 'Q-JZFKS-3', 'Q-HHRNBTT-2', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'rnb', 'dance', 'soul', 'funk']"
                                     'discogstags'  "['hip hop', 'funk / soul', 'electro', 'soul', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '138.9'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Nasty'
'TBPM' (BPM (beats per minute))                     '138.9'
'TCOM' (Composer)                                   'Larry Blackman/Larry Blackmon'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TIT2' (Title/songname/content description)         'Why Have I Lost You'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cameo'
'TPE2' (Band/orchestra/accompaniment)               'Cameo'
'TPUB' (Publisher)                                  'Intersound'
'TRCK' (Track number/Position in set)               '6'
'TSSE' (Software/Hardware and settings used for encoding)  'MediaMonkey 3.0.4'
'TXXX:DATE'                                         '1996'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['hip hop', 'funk / soul', 'electro', 'soul', 'funk']
'TXXX:lastfmtags'                                   ['80s', 'rnb', 'dance', 'soul', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.36 dB'
'TXXX:replaygain_track_peak'                        '0.871046'

========================== row from database ==========================
                                              'id'  1318890
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/Cameo/Nasty/06 Why Have I Lost You.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  370
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  5937158
                                           'mtime'  1620608776
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco italo 06 electronic we disco or italo
                                      'tag_artist'  Cameo
                                     'tag_release'  Nasty
                                       'tag_title'  Why Have I Lost You
                                             'bpm'  138.9
                                    'search_title'  'have':2 'i':3 'lost':4 'why':1 'you':5
                                   'search_artist'  'cameo':1
                                  'search_release'  'nasty':1
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 'disco':3 'electronic':6 'italo':5 'or':8 'waves':2 'we':7
                                    'search_combo'  '00disco':11 '00poprockelectronic':8 'cameo':6B 'disco':10 'electronic':13 'have':2A 'i':3A 'italo':12 'lost':4A 'nasty':7C 'or':15 'waves':9 'we':14 'why':1A 'you':5A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-4', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['80s', 'rnb', 'dance', 'soul', 'funk']
                                        'tag_date'  1996
                                     'discogstags'  ['hip hop', 'funk / soul', 'electro', 'soul', 'funk']

============================== file details ==============================
                                           'mtime'  1620608776.3705053  (2021-05-10 03:06:16)
                             'size'  5937158