======================== unified (from filesystem) ========================
                                         'bitrate'  '106.595'
                                        'duration'  '260'
                                          'artist'  'mammane sani et son orgue'
                                     'text_people'  ''
                                         'release'  'Dimitri - Intrumental'
                                           'title'  'bodo'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-1', "
 "'Q-CHART-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['minimal synth', 'minimal wave', 'niger', 'electronic', 'minimal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '102.4'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - Intrumental'
'TBPM' (BPM (beats per minute))                     '102.4'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TIT2' (Title/songname/content description)         'bodo'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'mammane sani et son orgue'
'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'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['minimal synth', 'minimal wave', 'niger', 'electronic', 'minimal']
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.61 dB'
'TXXX:replaygain_track_peak'                        '0.483668'
'TXXX:youtube'                                      'n21oMPTRa14'

========================== row from database ==========================
                                              'id'  1477650
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/Instrumental/mammane sani et son orgue - bodo-n21oMPTRa14.mp3
                                         'working'  None
                                         'bitrate'  107
                                    'duration_sec'  260
                                           'genre'  electronic-unsorted
                                        'filesize'  3481436
                                           'mtime'  1642339597
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Instrumental n21oMPTRa14 electronic unsorted
                                      'tag_artist'  mammane sani et son orgue
                                     'tag_release'  Dimitri - Intrumental
                                       'tag_title'  bodo
                                             'bpm'  102.4
                                    'search_title'  'bodo':1
                                   'search_artist'  'et':3 'mammane':1 'orgue':5 'sani':2 'son':4
                                  'search_release'  'dimitri':1 'intrumental':2
                                     'search_rest'  'electronic':3 'instrumental':1 'mptra14':6 'n21o':5 'n21omptra14':2 'unsorted':4
                                    'search_combo'  'bodo':1A 'dimitri':7C 'electronic':11 'et':4B 'instrumental':9 'intrumental':8C 'mammane':2B 'mptra14':14 'n21o':13 'n21omptra14':10 'orgue':6B 'sani':3B 'son':5B 'unsorted':12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-1', 'Q-CHART-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-3', 'Q-MIXBEAT-2']
                                      'lastfmtags'  ['minimal synth', 'minimal wave', 'niger', 'electronic', 'minimal']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642339597.051214  (2022-01-16 14:26:37)
                             'size'  3481436