======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '402'
                                          'artist'  'tangible'
                                     'text_people'  ''
                                         'release'  'homewerks'
                                           'title'  'salamander'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['8bitpeoples', '8 bit', 'chiptune', '8bit', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-we-beeps or chip or pico;set-pl-mor'
                                             'bpm'  '120.256'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'www.8bitpeoples.com'
'TALB' (Album/Movie/Show title)                     'homewerks'
'TBPM' (BPM (beats per minute))                     '120.256'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-we-beeps or chip or pico', 'set-pl-mor', 'set-pl-mor']
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'salamander'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'tangible'
'TRCK' (Track number/Position in set)               '10'
'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'                                   ['8bitpeoples', '8 bit', 'chiptune', '8bit', 'electronic']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.23 dB'
'TXXX:replaygain_track_peak'                        '0.605604'

========================== row from database ==========================
                                              'id'  1293684
                                            'path'  /data/Music/Bulk/00poprockelectronic/Tangible/8bp019-10-tangible-salamander.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  402
                                           'genre'  electronic-we-beeps or chip or pico;set-pl-mor
                                        'filesize'  6435127
                                           'mtime'  1621086499
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Tangible 8bp019 10 electronic beeps or chip or pico;set pl mor
                                      'tag_artist'  tangible
                                     'tag_release'  homewerks
                                       'tag_title'  salamander
                                             'bpm'  120.256
                                    'search_title'  'salamander':1
                                   'search_artist'  'tangible':1
                                  'search_release'  'homewerks':1
                                     'search_rest'  '00poprockelectronic':1 '8bp019':3 'beeps':5 'chip':7 'electronic':4 'mor':13 'or':6 'pico':8,10 'pl':12 'set':9,11 'tangible':2
                                    'search_combo'  '00poprockelectronic':4 '8bp019':6 'beeps':8 'chip':10 'electronic':7 'homewerks':3C 'mor':16 'or':9 'pico':11,13 'pl':15 'salamander':1A 'set':12,14 'tangible':2B,5
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-3', 'q-syn-4', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['8bitpeoples', '8 bit', 'chiptune', '8bit', 'electronic']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621086499.0686176  (2021-05-15 15:48:19)
                             'size'  6435127