======================== unified (from filesystem) ========================
                                         'bitrate'  '133.723'
                                        'duration'  '206'
                                          'artist'  'Colomach'
                                     'text_people'  ''
                                         'release'  'Dimitri - Folk, Rock & Guitar'
                                           'title'  'Pipan'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-3', 'Q-LOCALNESS-3', "
 "'Q-HHRNBTT-1', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['afrobeat', 'nigerian', 'psychedelic rock', 'africa', 'psychedelic']"
                                     'discogstags'  ("['funk / soul', 'afrobeat', 'folk, world, & country', 'psychedelic', "
 "'african']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '91.3'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - Folk, Rock & Guitar'
'TBPM' (BPM (beats per minute))                     '91.3'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TIT2' (Title/songname/content description)         'Pipan'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Colomach'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul', 'afrobeat', 'folk, world, & country', 'psychedelic', 'african']
'TXXX:lastfmtags'                                   ['afrobeat', 'nigerian', 'psychedelic rock', 'africa', 'psychedelic']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.44 dB'
'TXXX:replaygain_track_peak'                        '0.459042'
'TXXX:youtube'                                      'zQTlRn4V9Tk'

========================== row from database ==========================
                                              'id'  1477521
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/FolkRockGuitar/Colomach-Pipan-zQTlRn4V9Tk.mp3
                                         'working'  None
                                         'bitrate'  133
                                    'duration_sec'  206
                                           'genre'  ifs-songwriter
                                        'filesize'  3452367
                                           'mtime'  1621628552
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm FolkRockGuitar zQTlRn4V9Tk ifs songwriter
                                      'tag_artist'  Colomach
                                     'tag_release'  Dimitri - Folk, Rock & Guitar
                                       'tag_title'  Pipan
                                             'bpm'  91.3
                                    'search_title'  'pipan':1
                                   'search_artist'  'colomach':1
                                  'search_release'  'dimitri':1 'folk':2,3 'guitar':5 'rock':4
                                     'search_rest'  'folk':5 'folkrockguitar':1 'guitar':7 'ifs':3 'qtl':9 'rn4v9tk':10 'rock':6 'songwriter':4 'z':8 'zqtlrn4v9tk':2
                                    'search_combo'  'colomach':2B 'dimitri':3C 'folk':4C,5C,12 'folkrockguitar':8 'guitar':7C,14 'ifs':10 'pipan':1A 'qtl':16 'rn4v9tk':17 'rock':6C,13 'songwriter':11 'z':15 'zqtlrn4v9tk':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-CHART-2', 'q-drums-3', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['afrobeat', 'nigerian', 'psychedelic rock', 'africa', 'psychedelic']
                                        'tag_date'  
                                     'discogstags'  ['funk / soul', 'afrobeat', 'folk, world, & country', 'psychedelic', 'african']

============================== file details ==============================
                                           'mtime'  1621628552.4627235  (2021-05-21 22:22:32)
                             'size'  3452367