======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '259'
                                          'artist'  'ROS SEREY SOTHEA'
                                     'text_people'  ''
                                         'release'  'Uploads from Samouth Khmer (50s-70s Asian)'
                                           'title'  'Rolok Chea Sak Seiy'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-UNU-3', 'Q-JZFKS-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-4', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['cambodian', 'psychedelic', 'khmer', 'cambodia', 'cambodian rocks']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'loc-asia-cambodia'
                                             'bpm'  '144.541'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Uploads from Samouth Khmer (50s-70s Asian)'
'TBPM' (BPM (beats per minute))                     '144.541'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-cambodia'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Rolok Chea Sak Seiy'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'ROS SEREY SOTHEA'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['cambodian', 'psychedelic', 'khmer', 'cambodia', 'cambodian rocks']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.75 dB'
'TXXX:replaygain_track_peak'                        '0.241934'

========================== row from database ==========================
                                              'id'  1494042
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Uploads from Samouth Khmer (50s-70s Asian)/6 ROS SEREY SOTHEA - Rolok Chea Sak Seiy.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  259
                                           'genre'  loc-asia-cambodia
                                        'filesize'  8292685
                                           'mtime'  1621509065
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 6 loc asia cambodia
                                      'tag_artist'  ROS SEREY SOTHEA
                                     'tag_release'  Uploads from Samouth Khmer (50s-70s Asian)
                                       'tag_title'  Rolok Chea Sak Seiy
                                             'bpm'  144.541
                                    'search_title'  'chea':2 'rolok':1 'sak':3 'seiy':4
                                   'search_artist'  'ros':1 'serey':2 'sothea':3
                                  'search_release'  '50s':5 '50s70s':7 '70s':6 'asian':8,9 'from':2 'khmer':4 'samouth':3 'uploads':1
                                     'search_rest'  '00asia':1 '6':2 'asia':4 'cambodia':5 'loc':3
                                    'search_combo'  '00asia':17 '50s':12C '50s70s':14C '6':18 '70s':13C 'asia':20 'asian':15C,16C 'cambodia':21 'chea':2A 'from':9C 'khmer':11C 'loc':19 'rolok':1A 'ros':5B 'sak':3A 'samouth':10C 'seiy':4A 'serey':6B 'sothea':7B 'uploads':8C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['cambodian', 'psychedelic', 'khmer', 'cambodia', 'cambodian rocks']
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621509065.0306406  (2021-05-20 13:11:05)
                             'size'  8292685